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Introduction



Actas Dermo-Sifiliográficasis the official publication of the Spanish Academy of Dermatology and Venereology (AEDV). Founded by Juan de Azua in 1909, it is the longest-standing monthly Spanish medical journal. The journal is dedicated to articles on scientific research and continuing education with subjects related to medical-surgical dermatology and venereology. The journal is published in Spanish in its printed version and in Spanish and English in its on-line edition.

We suggest that articles by Spanish authors should comply with the general criteria of Law 14/2007, from 3rd July, for biomedical research (BOE n 159), which protects the rights of individuals who are subjects of research. Clinical assays should be registered with public databases prior to their initiation and patient recruitment, and only after approval of the institutional or regional Clinical Research Ethics Committee. The authors should provide the archive number and database where the assay is registered. For all clinical assays that initiate patient recruitment as of 1 January 2017, registration in public databases will be mandatory. Assays with patient recruitment prior to this date may still be submitted to the Journal for evaluation without this archive number and database.

Types of article

Originals. This section includes original works of clinical and basic research. The recommended designs are experimental studies (clinical trials), analytic observational (case-control and cohorts) or descriptive ones (cross-sectional). To elaborate the clinical trials, must follow the CONSORT standards, available under http://www.stard-statement.org/ must be followed the STARD initiative for diagnostic tests, available under http://www.stard-statement.org/ and for observational studies the STROBE guidelines available under http://www.strobe-statement.org/.
For single-centre studies, it is recommended not to exceed the number of 6 signatories. When multicentre studies more authors maybe considered for. The maximum word count is 2,500 words (excluding the title page, the abstract, the references, the tables and the figure legends). Up to 30 references, 6 figures and 6 tables will be accepted. An abstract of up 250 words and keywords should be included; this abstract will be structured in the following sections: background and aims, materials and method, results, conclusions. These requirements may only be changed in exceptional situations and with prior permission from the Editor. Only for online publishing only, it is recommended that the authors submit all tables, figures and methodology that are not essential for understanding the study but that are useful for replicating the study or for a more thorough reading of it. The manuscript should be structured into sections.

Brief Communications. This section is meant for papers with short patient series or long series that validate the results of other previous papers, as well as brief research papers signed by a maximum of 6 authors. In the case of a study, the paper must follow the recommendations on style and design of the original articles. It should include an unstructured abstract of a maximum 150 words and keywords. The maximum text length must be 1,500 words (excluding title the page, the abstract, the references, the tables and the figure legends), Up to 2 figures and/or tables and a maximum of 20 references will be accepted. The manuscript must be structured to include the following main headings: a) abstract (summary of most relevant findings); b) text with sequential sections: introduction, clinical cases/patients and method, results, discussion, and c) references. As noted for the original papers, we recommend only for online publishing, that authors submit all tables, figures and methodology that are not essential for understanding the study but that are useful for replicating the study or for a more thorough reading of it. This section will appear in the electronic version of Actas Dermo-Sifiliográficas.

Images in Dermatology. To be considered for publication, images must be high quality originals that reflect the clinical characteristics of dermatological diseases or the results of additional tests in dermatology and have significant teaching value (either due to their uniqueness or visual impact), which must be noted in the accompanying text. The image presented must be unique, although it may be composed of up to 2 photographs and shall be accompanied by a legend no longer than 200 words, with no associated references or abstract. The title should be brief (no more than 10 words), and it is recommended that no more than 3 authors be included. The images will be published on hardcopy or in electronic format at the discretion of the Journal's Editorial Committee.


Cases for Diagnosis.Published exclusively in online version. These manuscripts should include original clinical cases that have not been published previously in another journal. One to 3 authors will be allowed. Do not include an abstract, nor keywords. These manuscripts should include:
1. A first part (case presentation) maximum length of the text is 200 words. This part should contain the following: a) the case history; b) physical examination; c)histopathology (that describes the histologic findings but does not give conclusive information about the diagnosis); d) complementary tests; e) a maximum of 3 colour figures of highest-quality: these might be clinical, histologic, dermatoscopic,... with no figure captions (their meaning should be described in the text).
2. Second part (diagnosis and comments). Maximum length of the text is 450 words, excluding references, in order to be fitted in one printed page. This part should include: a) the diagnosis; b) course and treatment (of the patient presented);c) comments (on the reference disease, the case presented, and the differential diagnosis); d) references (up to 6 references).

Case and Research Letters. This section meant for the publication of brief reports on studies or clinical cases. They shall be signed by a maximum of 4 authors. The text shall have a maximum lenght of 800 words. Do not include an abstract, nor keywords. Up to 3 figures and/or tables will be admitted. Maximum number of references will be 10.

Letters to the Editor. This section is for publishing critical opinions, agreements, praise or any other type of observation regarding articles published in the journal. This section can also be used for suggestions, criticism, or comments about any formal aspect or content of the issue of Actas Dermo-Sifiliográficas. Letters shall be signed by a maximum of 4 authors. Do not include an abstract, nor keywords. The maximum length of text allowed is 800 words and might content up to 3 figures and/or tables. Maximum number of references will be 10.

Opinion Article. It includes the opinion of one or two authors on a subject of his/her specialty, giving his/her personal thoughts on it, with the possibility of referring to related publications. Maximum length of the text, usually without sections, will be 2500 words, not including the references (up to 20). Keywords are to be included but no abstract. Maximum of 2 table/figures can be added.


Reviews Reviews update a topic of dermatological importance, reviewing it in depth based on updated quality scientific evidence. The work should be signed by a maximum of 3 authors. The length of the text shall not exceed 3,500 words (excluding the title page, the abstract, the references, the tables and the figure legends) 8 tables/figures and a maximum of 100 references. Includes an unstructured abstract with a maximum of 150 words and keywords. The reviews will be conducted at the express request of the Journal's Editorial Committee or by a previous request from the author to the director ([email protected]) and will be subjected to a peer review. Reviews that include recommendations on procedures and/or preventive, diagnostic and/or therapeutic techniques shall include the level of evidence and degree of recommendation following the SIGN, Oxford or NICE classification systems. As well as general reviews, the journal Actas Dermo-Sifiliográficas publishes reviews on issues related to clinical practice, controversies and developments, with the following standards for authors.

Practical Dermatology. A review article on a topic with an eminently practical approach. Avoid an extensively long development of the work, orienting the subject towards recommendations for the daily clinical practice. Signed by a maximum of 3 authors. Length of the text shall not exceed 2,500 words (excluding the title page, the abstract, the references, the tables, and the figure captions). Include a non-structured (up to 150 words) and keywords. Use of figures, graphics, tables, or algorithms (not more than 8) is recommended to facilitate the understanding of the topic. Maximum number of references wil be 50. These articles are commissioned expressly by the Editor-in-Chief or by prior request of the author to the Editor ([email protected]) and will be subjected to peer review. The level of evidence of the recommendations as described for general reviews will be included.

Controversies in Dermatology.These are review articles on a topic that has some controversial aspects. The author should give some personal criteria and cover the different positions found in the literature. The text will be signed by a maximum of 3 authors and the extent shall not exceed 3,700 words (excluding the title page, the abstract, the references, the tables, and the figure captions). A non-structured abstract (up to 150 words) and keywords shall be included. Use of figures or tables (not more than 6) is recommended if they facilitate the understanding of the topic; up to 30 references are allowed. These articles are commissioned expressly by the Editor-in-Chief or by prior request of the author to the Editor ([email protected]) and will be subjected to peer-review.

Novelties in Dermatology. These are articles in which a subject of great current interest is reviewed and briefly commented on. The text will be signed by a maximum of 3 authors. Maximum length should be up to 2.500 words (excluding the title page, abstract, references, tables, and figure captions). Include a non-structured abstract (maximum 150 words) and keywords. Up to 6 tables/figures and 30 references can be included. These articles are commissioned expressly by the Editor-in-Chief or by prior request of the author to the Editor ([email protected]) and will be subjected to peer-review.


Consensus Statements. These articles cover the content of consensus statements, recommendations, and therapeutic or diagnostic guidelines drafted by a working group or a scientific society. The text will not exceed 2,500 words. A non-structured abstract (up to 150 words) and keywords are included. Up to 8 tables/figures and 100 references can be included. Levels of evidence and recommendation grades according to current international guidelines have to be included.
These articles are commissioned expressly by the Editor-in-Chief or by prior request of the author to the Editor ([email protected]) and will be subjected to peer-review. As part of the Continuing Medical Education program the authors will be requested to prepare 4 multiple-choice questions, whose standards of preparation will be detailed along with the request.

History and humanities in dermatology. These are review articles on the history or humanities related to dermatology and venereology. A maximum length up to will be 1,500 words without abstract. We admit no more than 3 authors, 3 figures/tables and 10 references. These articles are commissioned expressly by the Editor-in-Chief or by prior request of the author to the Editor ([email protected]) and will be subjected to peer review.

Practical Dermoscopy. This Section is dedicated to the publication of clinical-dermatoscopic cases. Includes clinical cases whose clinical diagnosis is difficult and in which dermoscopy provides the diagnostic key. Text signed by no more than 3 authors. Do not include an abstract the practical dermoscopy should include the following sections: 1. Case problem presentation along with two clinical imaging study, brief descriptive text (up to 50 words) not including the diagnostic. 2. Dermoscopic images presentation: two dermoscopic images should be accompanied by the question "What is the diagnosis?" 3. Comment: should be no longer than 400 words, excluding the references. It will include dermatoscopic feature description emphasizing the differential diagnosis keys. Maximum number of references allowed is 6.


Videos of Surgical Procedures in Dermatology. This section is focused on the use of innovative surgical techniques and modifications of existing ones for the resolution of clinical cases as well as the use of known surgical techniques to solve clinical complex cases. Videos will be signed by a maximum of 4 authors. A text of no more than 800 words (excluding title page, references, tables and figure captions) shall be attached to the video. Do not include abstract. Include key-words. Figures and tables (maximum 3 figures and / or tables) should be embedded in the video stream. References (no more than 5) shall be included at the end of the manuscript and video stream. The manuscript should be structured into the following sections: introduction, surgical technique description, indications/contraindications, complications, conclusions and references. The link to the video will be placed at the foot of the manuscript. Video lasts up to 10 minutes. Surgical video will show complete surgery procedure from baseline to final outcome.
It is recommended to include video footage or images of final postsurgical outcomes medium- to long term. To improve the understanding of the procedure described, short and clear commentaries (audio or subtitles) should be incorporated into the video fi le. Submit videos according to the following acceptable file formats .mov, .wmv, .mpg, .mpeg, .mp4 or .avi, and maximum file size of 50 MB. Verify that the videos are viewable in QuickTime or Windows Media Player. Editorial board of Actas Dermo-Sifiliográficasreserves the right to edit videos according to editorial line the journal. Accepted videos will be posted for viewing via streaming on ScienceDirect, and its manuscript will be published in the print version of the journal.

Forum. This section, which includes two manuscripts in each issue, is aimed at collecting short bibliographic reviews written by Dermatology Medical-Surgical and Venereology resident physicians who are aspiring academics to the Spanish Academy of Dermatology and Venereology (AEDV). Each review will cover or a subject considered to be of maximum interest and current, or a paper recently published on an impact journal, in which new and relevant information about aetiology and/or disease physiopathology, new dianostic techniques and/or treatments. The text will be signed by a maximum of 3 authors (of them, only one specialist in Dermatology is allowed. The manuscript title must include the prefix "FR-" followed by the review subject. Do not include a summary. Include key words. Maximum length of the text permitted is 500 words. In exceptional cases, a maximum of 1 figure could be included. The bibliography should include up to 5 references of articles published in PubMed indexed journals in relation with the subject of the original article commented. The articles of this section will be written on request of the section coordinators.

Supplements. The aim of the supplements is to provide more detailed information on a monographic subject. The supplements will have a Coordinator and different authors who will collaborate in drafting the corresponding articles. These articles will be reviewed in the same way as regular articles. These articles are commissioned expressly by the Editor-in-Chief or by prior request of the coordinator to the Editor ([email protected]). Funding is required for the publication of these supplements. They must follow the same publication guidelines as Actas Dermo-Sifiliográficas.

Contact details for submission

All manuscripts must be submitted online through the Actas Dermo-Sifiliograficas EM Web site at https://www.editorialmanager.com/ad

Language

This journal is published in Spanish and in English language.

Submission checklist

You can use this list to carry out a final check of your submission before you send it to the journal for review. Please check the relevant section in this Guide for Authors for more details.

Ensure that the following items are present:

One author has been designated as the corresponding author with contact details:
• E-mail address
• Full postal address

All necessary files have been uploaded:
Manuscript:
• Include keywords
• All figures (include relevant captions)
• All tables (including titles, description, footnotes)
• Ensure all figure and table citations in the text match the files provided
• Indicate clearly if color should be used for any figures in print
Graphical Abstracts / Highlights files (where applicable)
Supplemental files (where applicable)

Further considerations
• Manuscript has been 'spell checked' and 'grammar checked'
• All references mentioned in the Reference List are cited in the text, and vice versa
• Permission has been obtained for use of copyrighted material from other sources (including the Internet)
• A competing interests statement is provided, even if the authors have no competing interests to declare
• Journal policies detailed in this guide have been reviewed
• Referee suggestions and contact details provided, based on journal requirements

For further information, visit our Support Center.

Before you begin

Ethics in publishing

Please see our information on Ethics in publishing.

Studies in humans and animals

If the work involves the use of human subjects, the author should ensure that the work described has been carried out in accordance with The Code of Ethics of the World Medical Association (Declaration of Helsinki) for experiments involving humans. The manuscript should be in line with the Recommendations for the Conduct, Reporting, Editing and Publication of Scholarly Work in Medical Journals and aim for the inclusion of representative human populations (sex, age and ethnicity) as per those recommendations. The terms sex and gender should be used correctly.

The author should ensure that the manuscript contains a statement that all procedures were performed in compliance with relevant laws and institutional guidelines and have been approved by the appropriate institutional committee(s). This statement should contain the date and reference number of the ethical approval(s) obtained. Authors should also include a statement in the manuscript that informed consent was obtained for experimentation with human subjects. The privacy rights of human subjects must always be observed.

The journal will not accept manuscripts that contain data derived from unethically sourced organs or tissue, including from executed prisoners or prisoners of conscience, consistent with recommendations by Global Rights Compliance on Mitigating Human Rights Risks in Transplantation Medicine. For all studies that use human organs or tissues authors must provide sufficient evidence that they were procured in line with WHO Guiding Principles on Human Cell, Tissue and Organ Transplantation. The source of the organs or tissues used in clinical research must be transparent and traceable. Authors of manuscripts describing organ transplantation must additionally declare within the manuscript:

  1. that autonomous consent free from coercion was obtained from the donor(s) or their next of kin; and
  2. that organs/tissues were not sourced from executed prisoners or prisoners of conscience.

All animal experiments should comply with the ARRIVE guidelines and should be carried out in accordance with the U.K. Animals (Scientific Procedures) Act, 1986 and associated guidelines, EU Directive 2010/63/EU for animal experiments, or the National Research Council's Guide for the Care and Use of Laboratory Animals and the authors should clearly indicate in the manuscript that such guidelines have been followed. The sex of animals must be indicated, and where appropriate, the influence (or association) of sex on the results of the study.

Informed consent and patient details

Studies on patients or volunteers (including organ/tissue donors) require informed consent, which should be documented in the paper. Appropriate consents, permissions and releases must be obtained where an author wishes to include case details or other personal information or images of patients and any other individuals in an Elsevier publication. Written consents must be retained by the author, but copies should not be provided to the journal.

Only if specifically requested by the journal in exceptional circumstances (for example if a legal issue arises) the author must provide copies of the consents or evidence that such consents have been obtained. For more information, please review the Elsevier Policy on the Use of Images or Personal Information of Patients or other Individuals.

Unless the author has written permission from the patient (or, where applicable, the next of kin), the personal details of any patient included in any part of the article and in any supplementary materials (including all illustrations and videos) must be removed before submission.

Declaration of interest

All authors must disclose any financial and personal relationships with other people or organizations that could inappropriately influence (bias) their work. Examples of potential competing interests include employment, consultancies, stock ownership, honoraria, paid expert testimony, patent applications/registrations, and grants or other funding. Authors must disclose any interests in two places: 1. A summary declaration of interest statement in the title page file (if double anonymized) or the manuscript file (if single anonymized). If there are no interests to declare then please state this: 'Declarations of interest: none'. 2. Detailed disclosures as part of a separate Declaration of Interest form, which forms part of the journal's official records. It is important for potential interests to be declared in both places and that the information matches. More information.

Submission declaration and verification

Submission of an article implies that the work described has not been published previously (except in the form of an abstract, a published lecture or academic thesis, see 'Multiple, redundant or concurrent publication' for more information), that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, it will not be published elsewhere in the same form, in English or in any other language, including electronically without the written consent of the copyright-holder. To verify compliance, your article may be checked by Crossref Similarity Check and other originality or duplicate checking software.

Preprints
Please note that preprints can be shared anywhere at any time, in line with Elsevier's sharing policy. Sharing your preprints e.g. on a preprint server will not count as prior publication (see 'Multiple, redundant or concurrent publication' for more information).

Use of inclusive language

Inclusive language acknowledges diversity, conveys respect to all people, is sensitive to differences, and promotes equal opportunities. Content should make no assumptions about the beliefs or commitments of any reader; contain nothing which might imply that one individual is superior to another on the grounds of age, gender, race, ethnicity, culture, sexual orientation, disability or health condition; and use inclusive language throughout. Authors should ensure that writing is free from bias, stereotypes, slang, reference to dominant culture and/or cultural assumptions. We advise to seek gender neutrality by using plural nouns ("clinicians, patients/clients") as default/wherever possible to avoid using "he, she," or "he/she." We recommend avoiding the use of descriptors that refer to personal attributes such as age, gender, race, ethnicity, culture, sexual orientation, disability or health condition unless they are relevant and valid. When coding terminology is used, we recommend to avoid offensive or exclusionary terms such as "master", "slave", "blacklist" and "whitelist". We suggest using alternatives that are more appropriate and (self-) explanatory such as "primary", "secondary", "blocklist" and "allowlist". These guidelines are meant as a point of reference to help identify appropriate language but are by no means exhaustive or definitive.

Authorship

All authors should have made substantial contributions to all of the following: (1) the conception and design of the study, or acquisition of data, or analysis and interpretation of data, (2) drafting the article or revising it critically for important intellectual content, (3) final approval of the version to be submitted.

Changes to authorship

Authors are expected to consider carefully the list and order of authors before submitting their manuscript and provide the definitive list of authors at the time of the original submission. Any addition, deletion or rearrangement of author names in the authorship list should be made only before the manuscript has been accepted and only if approved by the journal Editor. To request such a change, the Editor must receive the following from the corresponding author: (a) the reason for the change in author list and (b) written confirmation (e-mail, letter) from all authors that they agree with the addition, removal or rearrangement. In the case of addition or removal of authors, this includes confirmation from the author being added or removed.
Only in exceptional circumstances will the Editor consider the addition, deletion or rearrangement of authors after the manuscript has been accepted. While the Editor considers the request, publication of the manuscript will be suspended. If the manuscript has already been published in an online issue, any requests approved by the Editor will result in a corrigendum.

Clinical trial results

In line with the position of the International Committee of Medical Journal Editors, the journal will not consider results posted in the same clinical trials registry in which primary registration resides to be prior publication if the results posted are presented in the form of a brief structured (less than 500 words) abstract or table. However, divulging results in other circumstances (e.g., investors' meetings) is discouraged and may jeopardise consideration of the manuscript. Authors should fully disclose all posting in registries of results of the same or closely related work.

Reporting clinical trials
Randomized controlled trials should be presented according to the CONSORT guidelines. At manuscript submission, authors must provide the CONSORT checklist accompanied by a flow diagram that illustrates the progress of patients through the trial, including recruitment, enrollment, randomization, withdrawal and completion, and a detailed description of the randomization procedure. The CONSORT checklist and template flow diagram are available online.

Registration of clinical trials
Registration in a public trials registry is a condition for publication of clinical trials in this journal in accordance with International Committee of Medical Journal Editors recommendations. Trials must register at or before the onset of patient enrolment. The clinical trial registration number should be included at the end of the abstract of the article. A clinical trial is defined as any research study that prospectively assigns human participants or groups of humans to one or more health-related interventions to evaluate the effects of health outcomes. Health-related interventions include any intervention used to modify a biomedical or health-related outcome (for example drugs, surgical procedures, devices, behavioural treatments, dietary interventions, and process-of-care changes). Health outcomes include any biomedical or health-related measures obtained in patients or participants, including pharmacokinetic measures and adverse events. Purely observational studies (those in which the assignment of the medical intervention is not at the discretion of the investigator) will not require registration.

Article transfer service
This journal is part of our Article Transfer Service. This means that if the Editor feels your article is more suitable in one of our other participating journals, then you may be asked to consider transferring the article to one of those. If you agree, your article will be transferred automatically on your behalf with no need to reformat. Please note that your article will be reviewed again by the new journal. More information.

Copyright

Upon acceptance of an article, authors will be asked to complete a 'Journal Publishing Agreement' (see more information on this). An e-mail will be sent to the corresponding author confirming receipt of the manuscript together with a 'Journal Publishing Agreement' form or a link to the online version of this agreement.

Author rights
As an author you (or your employer or institution) have certain rights to reuse your work. More information.

Elsevier supports responsible sharing
Find out how you can share your research published in Elsevier journals.

Role of the funding source

You are requested to identify who provided financial support for the conduct of the research and/or preparation of the article and to briefly describe the role of the sponsor(s), if any, in study design; in the collection, analysis and interpretation of data; in the writing of the report; and in the decision to submit the article for publication. If the funding source(s) had no such involvement, it is recommended to state this.

Open access

Please visit our Open Access page for more information about open access publishing in this journal.

Elsevier Researcher Academy
Researcher Academy is a free e-learning platform designed to support early and mid-career researchers throughout their research journey. The "Learn" environment at Researcher Academy offers several interactive modules, webinars, downloadable guides and resources to guide you through the process of writing for research and going through peer review. Feel free to use these free resources to improve your submission and navigate the publication process with ease.

Language (usage and editing services)
Please write your text in good English (American or British usage is accepted, but not a mixture of these). Authors who feel their English language manuscript may require editing to eliminate possible grammatical or spelling errors and to conform to correct scientific English may wish to use the Language Editing service available from Elsevier's Language Services.

Submit your article
Please submit your article via https://www.editorialmanager.com/ad.

Suggesting reviewers
Please submit the names and institutional e-mail addresses of several potential reviewers.

You should not suggest reviewers who are colleagues, or who have co-authored or collaborated with you during the last three years. Editors do not invite reviewers who have potential competing interests with the authors. Further, in order to provide a broad and balanced assessment of the work, and ensure scientific rigor, please suggest diverse candidate reviewers who are located in different countries/regions from the author group. Also consider other diversity attributes e.g. gender, race and ethnicity, career stage, etc. Finally, you should not include existing members of the journal's editorial team, of whom the journal are already aware.

Note: the editor decides whether or not to invite your suggested reviewers.

Preparation

Peer review

This journal operates a double anonymized review process. All contributions will be initially assessed by the editor for suitability for the journal. Papers deemed suitable are then typically sent to a minimum of two independent expert reviewers to assess the scientific quality of the paper. The Editor is responsible for the final decision regarding acceptance or rejection of articles. The Editor's decision is final. Editors are not involved in decisions about papers which they have written themselves or have been written by family members or colleagues or which relate to products or services in which the editor has an interest. Any such submission is subject to all of the journal's usual procedures, with peer review handled independently of the relevant editor and their research groups. More information on types of peer review.

Double anonymized review

This journal uses double anonymized review, which means the identities of the authors are concealed from the reviewers, and vice versa. More information is available on our website. To facilitate this, please include the following separately:
Title page (with author details): This should include the title, authors' names, affiliations, acknowledgements and any Declaration of Interest statement, and a complete address for the corresponding author including an e-mail address.
Anonymized manuscript (no author details): The main body of the paper (including the references, figures, tables and any acknowledgements) should not include any identifying information, such as the authors' names or affiliations.

Special issues and article collections

The peer review process for Special Issues and Article Collections is also a single anonymized review process. All contributions will be initially assessed by the Editor-in-chief for suitability for the journal. Papers deemed suitable are then assigned to an external Guest Editor. All Guest Editors receive training on conducting peer review. The Guest Editor sends the manuscript to a minimum of two independent expert reviewers to assess the scientific quality of the paper. The Guest Editor makes a recommendation for the decision to the Editor in Chief. The Editor in Chief is responsible for the final decision regarding acceptance or rejection of articles. The Editor in Chief oversees the peer review process of all Special Issues and Articles Collections to ensure the high standards of publishing ethics and responsiveness are respected. Guest Editors are not involved in decisions about papers which they have written themselves or have been written by family members or colleagues or which relate to products or services in which the guest editor has an interest. Any such submission is subject to all of the journal's usual procedures, with peer review handled independently of the relevant editor and their research groups.

Use of word processing software
It is important that the file be saved in the native format of the word processor used. The text should be in single-column format. Keep the layout of the text as simple as possible. Most formatting codes will be removed and replaced on processing the article. In particular, do not use the word processor's options to justify text or to hyphenate words. However, do use bold face, italics, subscripts, superscripts etc. When preparing tables, if you are using a table grid, use only one grid for each individual table and not a grid for each row. If no grid is used, use tabs, not spaces, to align columns. The electronic text should be prepared in a way very similar to that of conventional manuscripts (see also the Guide to Publishing with Elsevier). Note that source files of figures, tables and text graphics will be required whether or not you embed your figures in the text. See also the section on Electronic artwork.
To avoid unnecessary errors you are strongly advised to use the 'spell-check' and 'grammar-check' functions of your word processor.

Article structure

Subdivision - unnumbered sections
Divide your article into clearly defined sections. Each subsection is given a brief heading. Each heading should appear on its own separate line. Subsections should be used as much as possible when cross-referencing text: refer to the subsection by heading as opposed to simply 'the text'.

Introduction
State the objectives of the work and provide an adequate background, avoiding a detailed literature survey or a summary of the results.

Material and methods
Provide sufficient details to allow the work to be reproduced by an independent researcher. Methods that are already published should be summarized, and indicated by a reference. If quoting directly from a previously published method, use quotation marks and also cite the source. Any modifications to existing methods should also be described.

Results
Results should be clear and concise.

Discussion
This should explore the significance of the results of the work, not repeat them. A combined Results and Discussion section is often appropriate. Avoid extensive citations and discussion of published literature.

Conclusions
The main conclusions of the study may be presented in a short Conclusions section, which may stand alone or form a subsection of a Discussion or Results and Discussion section.

Appendices
If there is more than one appendix, they should be identified as A, B, etc. Formulae and equations in appendices should be given separate numbering: Eq. (A.1), Eq. (A.2), etc.; in a subsequent appendix, Eq. (B.1) and so on. Similarly for tables and figures: Table A.1; Fig. A.1, etc.

Essential title page information

Title. Concise and informative. Titles are often used in information-retrieval systems. Avoid abbreviations and formulae where possible.
Author names and affiliations. Please clearly indicate the given name(s) and family name(s) of each author and check that all names are accurately spelled. You can add your name between parentheses in your own script behind the English transliteration. Present the authors' affiliation addresses (where the actual work was done) below the names. Indicate all affiliations with a lower-case superscript letter immediately after the author's name and in front of the appropriate address. Provide the full postal address of each affiliation, including the country name and, if available, the e-mail address of each author.
Corresponding author. Clearly indicate who will handle correspondence at all stages of refereeing and publication, also post-publication. This responsibility includes answering any future queries about Methodology and Materials. Ensure that the e-mail address is given and that contact details are kept up to date by the corresponding author.
Present/permanent address. If an author has moved since the work described in the article was done, or was visiting at the time, a 'Present address' (or 'Permanent address') may be indicated as a footnote to that author's name. The address at which the author actually did the work must be retained as the main, affiliation address. Superscript Arabic numerals are used for such footnotes.

Highlights

Highlights are optional yet highly encouraged for this journal, as they increase the discoverability of your article via search engines. They consist of a short collection of bullet points that capture the novel results of your research as well as new methods that were used during the study (if any). Please have a look at the example Highlights.

Highlights should be submitted in a separate editable file in the online submission system. Please use 'Highlights' in the file name and include 3 to 5 bullet points (maximum 85 characters, including spaces, per bullet point).

Structured abstract

A structured abstract, by means of appropriate headings, should provide the context or background for the research and should state its purpose, basic procedures (selection of study subjects or laboratory animals, observational and analytical methods), main findings (giving specific effect sizes and their statistical significance, if possible), and principal conclusions. It should emphasize new and important aspects of the study or observations.

Graphical abstract
Although a graphical abstract is optional, its use is encouraged as it draws more attention to the online article. The graphical abstract should summarize the contents of the article in a concise, pictorial form designed to capture the attention of a wide readership. Graphical abstracts should be submitted as a separate file in the online submission system. Image size: Please provide an image with a minimum of 531 × 1328 pixels (h × w) or proportionally more. The image should be readable at a size of 5 × 13 cm using a regular screen resolution of 96 dpi. Preferred file types: TIFF, EPS, PDF or MS Office files. You can view Example Graphical Abstracts on our information site.

Keywords

Immediately after the abstract, provide a maximum of 6 keywords, using British spelling and avoiding general and plural terms and multiple concepts (avoid, for example, 'and', 'of'). Be sparing with abbreviations: only abbreviations firmly established in the field may be eligible. These keywords will be used for indexing purposes.

Abbreviations
Define abbreviations that are not standard in this field in a footnote to be placed on the first page of the article. Such abbreviations that are unavoidable in the abstract must be defined at their first mention there, as well as in the footnote. Ensure consistency of abbreviations throughout the article.

Acknowledgements
Collate acknowledgements in a separate section at the end of the article before the references and do not, therefore, include them on the title page, as a footnote to the title or otherwise. List here those individuals who provided help during the research (e.g., providing language help, writing assistance or proof reading the article, etc.).

Formatting of funding sources
List funding sources in this standard way to facilitate compliance to funder's requirements:

Funding: This work was supported by the National Institutes of Health [grant numbers xxxx, yyyy]; the Bill & Melinda Gates Foundation, Seattle, WA [grant number zzzz]; and the United States Institutes of Peace [grant number aaaa].

It is not necessary to include detailed descriptions on the program or type of grants and awards. When funding is from a block grant or other resources available to a university, college, or other research institution, submit the name of the institute or organization that provided the funding.

If no funding has been provided for the research, it is recommended to include the following sentence:

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Units
Follow internationally accepted rules and conventions: use the international system of units (SI). If other units are mentioned, please give their equivalent in SI.

Artwork

Image manipulation
Whilst it is accepted that authors sometimes need to manipulate images for clarity, manipulation for purposes of deception or fraud will be seen as scientific ethical abuse and will be dealt with accordingly. For graphical images, this journal is applying the following policy: no specific feature within an image may be enhanced, obscured, moved, removed, or introduced. Adjustments of brightness, contrast, or color balance are acceptable if and as long as they do not obscure or eliminate any information present in the original. Nonlinear adjustments (e.g. changes to gamma settings) must be disclosed in the figure legend.

Electronic artwork
General points
• Make sure you use uniform lettering and sizing of your original artwork.
• Embed the used fonts if the application provides that option.
• Aim to use the following fonts in your illustrations: Arial, Courier, Times New Roman, Symbol, or use fonts that look similar.
• Number the illustrations according to their sequence in the text.
• Use a logical naming convention for your artwork files.
• Provide captions to illustrations separately.
• Size the illustrations close to the desired dimensions of the published version.
• Submit each illustration as a separate file.
• Ensure that color images are accessible to all, including those with impaired color vision.

A detailed guide on electronic artwork is available.
You are urged to visit this site; some excerpts from the detailed information are given here.
Formats
If your electronic artwork is created in a Microsoft Office application (Word, PowerPoint, Excel) then please supply 'as is' in the native document format.
Regardless of the application used other than Microsoft Office, when your electronic artwork is finalized, please 'Save as' or convert the images to one of the following formats (note the resolution requirements for line drawings, halftones, and line/halftone combinations given below):
EPS (or PDF): Vector drawings, embed all used fonts.
TIFF (or JPEG): Color or grayscale photographs (halftones), keep to a minimum of 300 dpi.
TIFF (or JPEG): Bitmapped (pure black & white pixels) line drawings, keep to a minimum of 1000 dpi.
TIFF (or JPEG): Combinations bitmapped line/half-tone (color or grayscale), keep to a minimum of 500 dpi.
Please do not:
• Supply files that are optimized for screen use (e.g., GIF, BMP, PICT, WPG); these typically have a low number of pixels and limited set of colors;
• Supply files that are too low in resolution;
• Submit graphics that are disproportionately large for the content.

Color artwork
Please make sure that artwork files are in an acceptable format (TIFF (or JPEG), EPS (or PDF) or MS Office files) and with the correct resolution. If, together with your accepted article, you submit usable color figures then Elsevier will ensure, at no additional charge, that these figures will appear in color online (e.g., ScienceDirect and other sites) in addition to color reproduction in print. Further information on the preparation of electronic artwork.

Figure captions
Ensure that each illustration has a caption. Supply captions separately, not attached to the figure. A caption should comprise a brief title (not on the figure itself) and a description of the illustration. Keep text in the illustrations themselves to a minimum but explain all symbols and abbreviations used.

Tables

Please submit tables as editable text and not as images. Tables can be placed either next to the relevant text in the article, or on separate page(s) at the end. Number tables consecutively in accordance with their appearance in the text and place any table notes below the table body. Be sparing in the use of tables and ensure that the data presented in them do not duplicate results described elsewhere in the article. Please avoid using vertical rules and shading in table cells.

References

Citation in text
Please ensure that every reference cited in the text is also present in the reference list (and vice versa). Any references cited in the abstract must be given in full. Unpublished results and personal communications are not recommended in the reference list, but may be mentioned in the text. If these references are included in the reference list they should follow the standard reference style of the journal and should include a substitution of the publication date with either 'Unpublished results' or 'Personal communication'. Citation of a reference as 'in press' implies that the item has been accepted for publication.

Reference links
Increased discoverability of research and high quality peer review are ensured by online links to the sources cited. In order to allow us to create links to abstracting and indexing services, such as Scopus, Crossref and PubMed, please ensure that data provided in the references are correct. Please note that incorrect surnames, journal/book titles, publication year and pagination may prevent link creation. When copying references, please be careful as they may already contain errors. Use of the DOI is highly encouraged.

A DOI is guaranteed never to change, so you can use it as a permanent link to any electronic article. An example of a citation using DOI for an article not yet in an issue is: VanDecar J.C., Russo R.M., James D.E., Ambeh W.B., Franke M. (2003). Aseismic continuation of the Lesser Antilles slab beneath northeastern Venezuela. Journal of Geophysical Research, https://doi.org/10.1029/2001JB000884. Please note the format of such citations should be in the same style as all other references in the paper.

Web references
As a minimum, the full URL should be given and the date when the reference was last accessed. Any further information, if known (DOI, author names, dates, reference to a source publication, etc.), should also be given. Web references can be listed separately (e.g., after the reference list) under a different heading if desired, or can be included in the reference list.

Data references
This journal encourages you to cite underlying or relevant datasets in your manuscript by citing them in your text and including a data reference in your Reference List. Data references should include the following elements: author name(s), dataset title, data repository, version (where available), year, and global persistent identifier. Add [dataset] immediately before the reference so we can properly identify it as a data reference. The [dataset] identifier will not appear in your published article.

Preprint references
Where a preprint has subsequently become available as a peer-reviewed publication, the formal publication should be used as the reference. If there are preprints that are central to your work or that cover crucial developments in the topic, but are not yet formally published, these may be referenced. Preprints should be clearly marked as such, for example by including the word preprint, or the name of the preprint server, as part of the reference. The preprint DOI should also be provided.

References in a special issue
Please ensure that the words 'this issue' are added to any references in the list (and any citations in the text) to other articles in the same Special Issue.

Reference management software
Most Elsevier journals have their reference template available in many of the most popular reference management software products. These include all products that support Citation Style Language styles, such as Mendeley. Using citation plug-ins from these products, authors only need to select the appropriate journal template when preparing their article, after which citations and bibliographies will be automatically formatted in the journal's style. If no template is yet available for this journal, please follow the format of the sample references and citations as shown in this Guide. If you use reference management software, please ensure that you remove all field codes before submitting the electronic manuscript. More information on how to remove field codes from different reference management software.

Reference style
Text: Indicate references by superscript numbers in the text. The actual authors can be referred to, but the reference number(s) must always be given.
List: Number the references in the list in the order in which they appear in the text.
Examples:
Reference to a journal publication:
1. Van der Geer J, Hanraads JAJ, Lupton RA. The art of writing a scientific article. J Sci Commun 2010;163:51–9. https://doi.org/10.1016/j.Sc.2010.00372.
Reference to a journal publication with an article number:
2. Van der Geer J, Hanraads JAJ, Lupton RA. The art of writing a scientific article. Heliyon. 2018;19:e00205. https://doi.org/j.heliyon.2018.e00205.
Reference to a book:
3. Strunk Jr W, White EB. The elements of style. 4th ed. New York: Longman; 2000.
Reference to a chapter in an edited book:
4. Mettam GR, Adams LB. How to prepare an electronic version of your article. In: Jones BS, Smith RZ, editors. Introduction to the electronic age, New York: E-Publishing Inc; 2009, p. 281–304.
Reference to a website:
5. Cancer Research UK. Cancer statistics reports for the UK, http://www.cancerresearchuk.org/aboutcancer/statistics/cancerstatsreport/; 2003 [accessed 13 March 2003].
Reference to a dataset:
[dataset] 6. Oguro M, Imahiro S, Saito S, Nakashizuka T. Mortality data for Japanese oak wilt disease and surrounding forest compositions, Mendeley Data, v1; 2015. https://doi.org/10.17632/xwj98nb39r.1.
Note shortened form for last page number. e.g., 51–9, and that for more than 6 authors the first 6 should be listed followed by 'et al.' For further details you are referred to 'Uniform Requirements for Manuscripts submitted to Biomedical Journals' (J Am Med Assoc 1997;277:927–34)(see also Samples of Formatted References).

Journal abbreviations source
Journal names should be abbreviated according to the List of Title Word Abbreviations.

Video

Elsevier accepts video material and animation sequences to support and enhance your scientific research. Authors who have video or animation files that they wish to submit with their article are strongly encouraged to include links to these within the body of the article. This can be done in the same way as a figure or table by referring to the video or animation content and noting in the body text where it should be placed. All submitted files should be properly labeled so that they directly relate to the video file's content. In order to ensure that your video or animation material is directly usable, please provide the file in one of our recommended file formats with a preferred maximum size of 150 MB per file, 1 GB in total. Video and animation files supplied will be published online in the electronic version of your article in Elsevier Web products, including ScienceDirect. Please supply 'stills' with your files: you can choose any frame from the video or animation or make a separate image. These will be used instead of standard icons and will personalize the link to your video data. For more detailed instructions please visit our video instruction pages. Note: since video and animation cannot be embedded in the print version of the journal, please provide text for both the electronic and the print version for the portions of the article that refer to this content.

Supplementary material

Supplementary material such as applications, images and sound clips, can be published with your article to enhance it. Submitted supplementary items are published exactly as they are received (Excel or PowerPoint files will appear as such online). Please submit your material together with the article and supply a concise, descriptive caption for each supplementary file. If you wish to make changes to supplementary material during any stage of the process, please make sure to provide an updated file. Do not annotate any corrections on a previous version. Please switch off the 'Track Changes' option in Microsoft Office files as these will appear in the published version.

After acceptance

Proofs

One set of page proofs (as PDF files) will be sent by e-mail to the corresponding author (if we do not have an e-mail address then paper proofs will be sent by post) or a link will be provided in the e-mail so that authors can download the files themselves. To ensure a fast publication process of the article, we kindly ask authors to provide us with their proof corrections within two days. Elsevier now provides authors with PDF proofs which can be annotated; for this you will need to download the free Adobe Reader, version 9 (or higher). Instructions on how to annotate PDF files will accompany the proofs (also given online). The exact system requirements are given at the Adobe site.
If you do not wish to use the PDF annotations function, you may list the corrections (including replies to the Query Form) and return them to Elsevier in an e-mail. Please list your corrections quoting line number. If, for any reason, this is not possible, then mark the corrections and any other comments (including replies to the Query Form) on a printout of your proof and scan the pages and return via e-mail. Please use this proof only for checking the typesetting, editing, completeness and correctness of the text, tables and figures. Significant changes to the article as accepted for publication will only be considered at this stage with permission from the Editor. We will do everything possible to get your article published quickly and accurately. It is important to ensure that all corrections are sent back to us in one communication: please check carefully before replying, as inclusion of any subsequent corrections cannot be guaranteed. Proofreading is solely your responsibility.

Offprints

The corresponding author will be notified and receive a link to the published version of the open access article on ScienceDirect. This link is in the form of an article DOI link which can be shared via email and social networks. For an extra charge, paper offprints can be ordered via the offprint order form which is sent once the article is accepted for publication.

Author inquiries



Visit the Elsevier Support Center to find the answers you need. Here you will find everything from Frequently Asked Questions to ways to get in touch.
You can also check the status of your submitted article or find out when your accepted article will be published.