Guide for Authors

  • All journal information and instructions compiled in one document (PDF) in just one mouse-click Author information pack

    INTRODUCTION
    • Types of article
    BEFORE YOU BEGIN
    • Ethics in publishing
    • Human and animal rights
    • Conflict of interest
    • Submission declaration and verification
    • Changes to authorship
    • Reporting clinical trials
    • Clinical trials
    • Registration of clinical trials
    • Copyright
    • Role of the funding source
    • Funding body agreements and policies
    • Open access
    • Language (usage and editing services)
    • Informed consent and patient details
    • Submission
    • Referees
    PREPARATION
    • Use of word processing software
    • Essential title page information
    • Page numbering
    • Structured abstract
    • Graphical abstract
    • Highlights
    • Abbreviations
    • Acknowledgements
    • Units
    • Drug Names
    • Math formulae
    • Footnotes
    • Artwork
    • Tables
    • Video data
    • AudioSlides
    • Supplementary data
    • Google Maps and KML files
    • Submission checklist
    AFTER ACCEPTANCE
    • Use of the Digital Object Identifier
    • Proofs
    AUTHOR INQUIRIES



    Papers accepted for publication in the Scandinavian Journal of Pain will be published in 2 formats in this hybrid journal:
    1) an extended abstract together with an editorial comment, in the printed paper-version of the Journal
    2) in full on ScienceDirect and the Journal website (www.ScandinavianJournalPain.com). All articles remain fully citable and available to searches. They are indexed on Scopus/ScienceDirect and EMBASE

    IMPORTANT MESSAGE
    Articles can only be submitted online via the Elsevier Editorial System at http://ees.elsevier.com/sjpain . Before you can upload your manuscript you will need to register to the program as an author. An individual username and a password will be sent to you. Please make sure that your manuscript is in accordance with the Guide for Authors given below.

    Types of article

    The Scandinavian Journal of Pain publishes high quality reports on original basic and clinical research; comprehensive systematic and topical reviews; hypothesis-generating case-reports and observational studies; letter to the Editor.

    Basic and Clinical Research
    Word limit; Abstract : 500 words, Introduction : 500 words, Methods : no limit; Results : no limits; Discussion : 1500 words. Follow CONSORT-guidelines when planning and reporting clinical trials (www.consort-statement.org), and ARRIVE-guidelines when planning and reporting animal studies (www.nc3rs.org.uk/ARRIVE).
    Please refer to ethics for guidelines for reporting on animal studies or clinical trials (ethics and clinical trials).

    Comprehensive Systematic Reviews and Topical Reviews
    Topical reviews focus on recent research and development of important issues in pain medicine.
    Comprehensive reviews can include meta-analysis when appropriate or be narrative when meta-analysis is not possible. Follow the PRISMA (formerly QUOROM) guidelines for reporting systematic reviews and meta-analysis (www.prisma-statement.org).
    Word limit : 6000 words.

    Case-reports and observational studies
    Should describe new and important observations that may generate hypothesis that can subsequently be tested in proper clinical trials. Word-limits: These should generally be brief reports (no longer than 4000 words).

    Letters to the Editor
    Letters containing critical assessment of papers recently published in the Scandinavian Journal of Pain will be considered for publication in the correspondence section. Letters should not exceed 1000 words including references as necessary, one table or one figure. Letters should be typed in double spacing, should have a heading and no abbreviations. If related to a previously published article, the article should be identified by title, author(s), and volume/page numbers. All letters are subject to editorial review. At the Editor's discretion, a letter may be sent to authors of the original paper for comment, and both letter and reply may be published together.

    Ethics in publishing

    For information on Ethics in publishing and Ethical guidelines for journal publication see http://www.elsevier.com/publishingethics and http://www.elsevier.com/journal-authors/ethics.

    Human and animal rights

    If the work involves the use of animal or 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 http://www.wma.net/en/30publications/10policies/b3/index.html; EU Directive 2010/63/EU for animal experiments http://ec.europa.eu/environment/chemicals/lab_animals/legislation_en.htm; Uniform Requirements for manuscripts submitted to Biomedical journals http://www.icmje.org. Authors should 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 protocol for interventional pain studies on humans should be approved by an institutional clinical research board/committee.

    Ethics of Animal Experiments
    Work described in your article that deals with animal experiments just follow the guidelines listed hereunder.

    The experiments must adhere to the guidelines of the Committee for Research and Ethical Issues of IASP [www.iasp-pain.org/AM/Template.cfm?Section=Animal_Research]. The study-protocol should be reviewed by an institutional animal care and use committee.

    When reporting animal pain research, please follow the ARRIVE Guidelines (Rice A SC et al. Scand J Pain 2013;4:58-62; Kontinen VK Scand J pain 2013;4:57.) http://www.nc3rs.org.uk/page.asp?id=1357.

    Conflict of interest

    All authors are requested to disclose any actual or potential conflict of interest including any financial, personal or other relationships with other people or organizations within three years of beginning the submitted work that could inappropriately influence, or be perceived to influence, their work. See also http://www.elsevier.com/conflictsofinterest. Further information and an example of a Conflict of Interest form can be found at: http://help.elsevier.com/app/answers/detail/a_id/286/p/7923.

    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 or as part of a published lecture or academic thesis or as an electronic preprint, see http://www.elsevier.com/postingpolicy), 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 originality, your article may be checked by the originality detection service CrossCheck http://www.elsevier.com/editors/plagdetect.

    Changes to authorship

    This policy concerns the addition, deletion, or rearrangement of author names in the authorship of accepted manuscripts:
    Before the accepted manuscript is published in an online issue: Requests to add or remove an author, or to rearrange the author names, must be sent to the Journal Manager from the corresponding author of the accepted manuscript and must include: (a) the reason the name should be added or removed, or the author names rearranged and (b) written confirmation (e-mail, fax, 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. Requests that are not sent by the corresponding author will be forwarded by the Journal Manager to the corresponding author, who must follow the procedure as described above. Note that: (1) Journal Managers will inform the Journal Editors of any such requests and (2) publication of the accepted manuscript in an online issue is suspended until authorship has been agreed.
    After the accepted manuscript is published in an online issue: Any requests to add, delete, or rearrange author names in an article published in an online issue will follow the same policies as noted above and result in a corrigendum.

    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 can be found on http://www.consort-statement.org.

    Clinical trials

    Please submit the CONSORT check-list with the cover-letter to the Editor. In addition, authors should consider describing the outcome measures following the IMMPACT recommendations (Dworkin et al., Pain 2005:113;9-19).

    All trials initiated after July 1, 2005 must be registered in a publicly accessible registry before patient inclusion has begun. The name of the registry and the registry number must be included in the method section. Examples of acceptable registries: WHO International Clinical Trials Registry Platform (ICTRP) and ClinicalTrials.gov.

    We also recommend that the protocols for systematic reviews be registered at PROSPERO (www.crd.york.ac.uk/prospero/).

    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 (ICMJE, http://www.icmje.org) 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.

    Copyright

    This journal offers authors a choice in publishing their research: Open access and Subscription.

    For subscription articles
    Upon acceptance of an article, authors will be asked to complete a 'Journal Publishing Agreement' (for more information on this and copyright, see http://www.elsevier.com/copyright). 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.
    Subscribers may reproduce tables of contents or prepare lists of articles including abstracts for internal circulation within their institutions. Permission of the Publisher is required for resale or distribution outside the institution and for all other derivative works, including compilations and translations (please consult http://www.elsevier.com/permissions). If excerpts from other copyrighted works are included, the author(s) must obtain written permission from the copyright owners and credit the source(s) in the article. Elsevier has preprinted forms for use by authors in these cases: please consult http://www.elsevier.com/permissions.

    For open access articles
    Upon acceptance of an article, authors will be asked to complete an 'Exclusive License Agreement' (for more information see http://www.elsevier.com/OAauthoragreement). Permitted reuse of open access articles is determined by the author's choice of user license (see http://www.elsevier.com/openaccesslicenses).

    Retained author rights
    As an author you (or your employer or institution) retain certain rights. For more information on author rights for:
    Subscription articles please see http://www.elsevier.com/journal-authors/author-rights-and-responsibilities.
    Open access articles please see http://www.elsevier.com/OAauthoragreement.

    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 then this should be stated.

    Funding body agreements and policies

    Elsevier has established agreements and developed policies to allow authors whose articles appear in journals published by Elsevier, to comply with potential manuscript archiving requirements as specified as conditions of their grant awards. To learn more about existing agreements and policies please visit http://www.elsevier.com/fundingbodies.

    Open access

    This journal offers authors a choice in publishing their research:

    Open access
    • Articles are freely available to both subscribers and the wider public with permitted reuse
    • An open access publication fee is payable by authors or their research funder
    Subscription
    • Articles are made available to subscribers as well as developing countries and patient groups through our access programs (http://www.elsevier.com/access)
    • No open access publication fee

    All articles published open access will be immediately and permanently free for everyone to read and download. Permitted reuse is defined by your choice of one of the following Creative Commons user licenses:
    Creative Commons Attribution-NonCommercial-ShareAlike (CC BY-NC-SA): for non-commercial purposes, lets others distribute and copy the article, to create extracts, abstracts and other revised versions, adaptations or derivative works of or from an article (such as a translation), to include in a collective work (such as an anthology), to text and data mine the article, as long as they credit the author(s), do not represent the author as endorsing their adaptation of the article, do not modify the article in such a way as to damage the author's honor or reputation, and license their new adaptations or creations under identical terms (CC BY-NC-SA).
    Creative Commons Attribution-NonCommercial-NoDerivs (CC BY-NC-ND): for non-commercial purposes, lets others distribute and copy the article, and to include in a collective work (such as an anthology), as long as they credit the author(s) and provided they do not alter or modify the article.

    Elsevier has established agreements with funding bodies, http://www.elsevier.com/fundingbodies. This ensures authors can comply with funding body open access requirements, including specific user licenses, such as CC BY. Some authors may also be reimbursed for associated publication fees. If you need to comply with your funding body policy, you can apply for the CC BY license after your manuscript is accepted for publication.

    To provide open access, this journal has a publication fee which needs to be met by the authors or their research funders for each article published open access.
    Your publication choice will have no effect on the peer review process or acceptance of submitted articles.

    The open access publication fee for this journal is $2,500, excluding taxes. Learn more about Elsevier's pricing policy: http://www.elsevier.com/openaccesspricing.

    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 English Language Editing service available from Elsevier's WebShop (http://webshop.elsevier.com/languageediting/) or visit our customer support site (http://support.elsevier.com) for more information.

    Translations
    Mere translations of questionnaires into another language will not be considered for publication except if the study provides information and insights that go beyond the issue of translation. Such data include for example comprehensive validity analyses including factorial validity, divergent and convergent validity or findings with regard to the clinical usefulness of a particular questionnaire. Informed consent and patient details

    Studies on patients or volunteers require ethics committee approval and 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 and copies of the consents or evidence that such consents have been obtained must be provided to Elsevier on request. For more information, please review the Elsevier Policy on the Use of Images or Personal Information of Patients or other Individuals, http://www.elsevier.com/patient-consent-policy. Unless you have 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.

    Submission

    Submission to this journal proceeds totally online and you will be guided stepwise through the creation and uploading of your files. The system automatically converts source files to a single PDF file of the article, which is used in the peer-review process. Please note that even though manuscript source files are converted to PDF files at submission for the review process, these source files are needed for further processing after acceptance. All correspondence, including notification of the Editor's decision and requests for revision, takes place by e-mail removing the need for a paper trail.

    Submit your article
    Please submit your article via http://ees.elsevier.com/sjpain.

    Referees

    Please submit the names and institutional e-mail addresses of several potential referees. For more details, visit our Support site. Note that the editor retains the sole right to decide whether or not the suggested reviewers are used.

    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: http://www.elsevier.com/guidepublication). 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 headings - numbered sections
    Divide your article into clearly defined and numbered main sections (see below).The subsections should then be numbered 1.1 (then 1.1.1, 1.1.2, ...), 1.2, etc. (the abstract (500 words) is not included in section numbering). Use this numbering also for internal cross-referencing: do not just refer to 'the text'. Any subsection is given a brief subheading. Each heading/subheading should appear on its own separate line.

    1. Introduction (limit to about 500 words)
    Describe briefly the background and why this study is important and interesting. State clearly the objectives and aims of this study.

    2. Material and methods (no limits)
    Provide sufficient detail to allow the work to be reproduced. Methods already published should be indicated by a reference: only relevant modifications should be described.

    3. Results (no limits)
    Results should be clear and concise.

    4. Discussion (limit about 1,500 words)
    This should explore the significance of the results of the work, not repeat them. A combined Results and Discussion sectioncan be appropriate. Avoid extensive citations and discussion of published literature.

    5. Conclusions
    The main conclusions based solely on the data of the study.

    6. Implications
    What do the authors think their findings and conclusions mean: The wider interpretation and possible consequences of their findings?

    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. Where the family name may be ambiguous (e.g., a double name), please indicate this clearly. 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. Ensure that phone numbers (with country and area code) are provided in addition to the e-mail address and the complete postal address. Contact details must be 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.

    Page numbering

    When preparing your files for submission, you must insert page numbers to your main manuscript file.

    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.

    NOTE: This abstract will also be published in the printed version of this hybrid journal, with an editorial comment prepared by the Editor. Use 500 words with the following subheadings in bold (some variations allowed for reviews and case reports/observational studies):

    • Background and aims
    • Methods
    • Results
    • Conclusions (based on your data)
    • Implications (your opinion on what your findings mean)
    • References should be avoided, but if essential, then cite the author(s) and year(s), as well as the [number] in the list of references of the paper.
    Non-standard or uncommon abbreviations should be avoided, but if essential they must be defined at their first mention in the abstract itself.

    It is possible to submit a single illustration if considered essential to summarising the topic, accompanied by a short concise legend. Editorially approved color illustrations will be reproduced in color in the printed journal at no additional charge. Color reproduction is as outlined under the Color Artwork section below

    Graphical abstract

    A Graphical abstract is optional and should summarize the contents of the article in a concise, pictorial form designed to capture the attention of a wide readership online. Authors must provide images that clearly represent the work described in the article. 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. See http://www.elsevier.com/graphicalabstracts for examples.
    Authors can make use of Elsevier's Illustration and Enhancement service to ensure the best presentation of their images also in accordance with all technical requirements: Illustration Service.

    Highlights

    Highlights are mandatory for this journal. They consist of a short collection of bullet points that convey the core findings of the article and should be submitted in a separate 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). See http://www.elsevier.com/highlights for examples.

    Keywords
    Immediately after the abstract, provide a maximum of 6 keywords, 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.).

    Units

    Temperatures should be given in degrees Celsius and blood pressures in millimetres of mercury or kPa with the alternative units in parentheses. All other measurements including laboratory measurements should be reported in the metric system in terms of the International System of Units (SI), e.g. metre [m], litre [L], kilogram [kg].
    Abbreviations should be limited and defined after the first use of the term.

    Drug Names

    Generic names of drugs should be used where possible. When quoting from specific materials on proprietary drugs, authors must state in parentheses the name and address of the manufacturer. Math formulae

    Present simple formulae in the line of normal text where possible and use the solidus (/) instead of a horizontal line for small fractional terms, e.g., X/Y. In principle, variables are to be presented in italics. Powers of e are often more conveniently denoted by exp. Number consecutively any equations that have to be displayed separately from the text (if referred to explicitly in the text).

    Footnotes

    Footnotes should be used sparingly. Number them consecutively throughout the article, using superscript Arabic numbers. Many wordprocessors build footnotes into the text, and this feature may be used. Should this not be the case, indicate the position of footnotes in the text and present the footnotes themselves separately at the end of the article. Do not include footnotes in the Reference list.
    Table footnotes
    Indicate each footnote in a table with a superscript lowercase letter.

    Artwork

    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 printed version.
    • Submit each illustration as a separate file.
    A detailed guide on electronic artwork is available on our website:
    http://www.elsevier.com/artworkinstructions
    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 on the Web (e.g., ScienceDirect and other sites) regardless of whether or not these illustrations are reproduced in color in the printed version. For color reproduction in print, you will receive information regarding the costs from Elsevier after receipt of your accepted article. Please indicate your preference for color: in print or on the Web only. For further information on the preparation of electronic artwork, please see http://www.elsevier.com/artworkinstructions.
    Please note: Because of technical complications that can arise by converting color figures to 'gray scale' (for the printed version should you not opt for color in print) please submit in addition usable black and white versions of all the color illustrations.

    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

    Number tables consecutively in accordance with their appearance in the text. Place footnotes to tables below the table body and indicate them with superscript lowercase letters. Avoid vertical rules. Be sparing in the use of tables and ensure that the data presented in tables do not duplicate results described elsewhere in the article.

    References
    Text: Indicate references by number(s) in [square brackets] in line with the text-consecutively as they are cited. The actual authors can be referred to, but the reference number(s) must always be given.

    List: Number the references [numbers in square brackets] in the list in the order in which they appear in the text.

    Note shortened form for last page number. e.g., 51-9, and that ALL authors should be listed (et al. is not permitted), and do NOT include issue number(s).

    Examples:

    Reference to a journal publication:
    [1] Stabell N, Stubhaug A, Flægstad T, Nielsen CS. Increased pain sensitivity among adults reporting irritable bowel syndrome symptoms in a large population-based study. Pain 2013;154:385-92.
    [2] Kontinen V, Kalso E. Why we are proud to publish well-performed negative clinical studies? Scand J Pain 2013;4:15-6.

    Reference to a book:
    [3] Strunk Jr W, White EB. The elements of style. 3 ed. New York: Macmillan; 1979.
    [4] Breivik H, Campbell WI, Nicholas MK. Clinical Pain management. Practice and Procedures. (2nd ed) London: Hodder Arnold; 2008

    Reference to a chapter in an edited book:
    [5] Jensen TS, Finnerup NB. Central Pain. In: McMahon SB, Tracey I, Koltzenburg M, Turk DC, editors. Wall and Melzack's Textbook of Pain. 6th ed. London: Saunders; 2013, p 990-1002.

    Title of publications in any non-English language should be written with [English translation in brackets]. Example:
    [6] Breivik H, Stubhaug A. [Difficult drug reimbursement system for pain patients].
    Tidsskr Nor Laegeforen 2013;133:130.

    Personal communications, manuscripts in preparation and other unpublished data should not be cited in the reference list but may be mentioned in the text in parentheses.

    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.

    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.

    Journal abbreviations source
    Journal names should be abbreviated according to the List of Title Word Abbreviations: http://www.issn.org/services/online-services/access-to-the-ltwa/.

    Video data

    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 files in one of our recommended file formats with a preferred maximum size of 50 MB. Video and animation files supplied will be published online in the electronic version of your article in Elsevier Web products, including ScienceDirect: http://www.sciencedirect.com. 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 at http://www.elsevier.com/artworkinstructions. 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.

    AudioSlides

    The journal encourages authors to create an AudioSlides presentation with their published article. AudioSlides are brief, webinar-style presentations that are shown next to the online article on ScienceDirect. This gives authors the opportunity to summarize their research in their own words and to help readers understand what the paper is about. More information and examples are available at http://www.elsevier.com/audioslides. Authors of this journal will automatically receive an invitation e-mail to create an AudioSlides presentation after acceptance of their paper.

    Supplementary data

    Elsevier accepts electronic supplementary material to support and enhance your scientific research. Supplementary files offer the author additional possibilities to publish supporting applications, high-resolution images, background datasets, sound clips and more. Supplementary files supplied will be published online alongside the electronic version of your article in Elsevier Web products, including ScienceDirect: http://www.sciencedirect.com. In order to ensure that your submitted material is directly usable, please provide the data in one of our recommended file formats. Authors should submit the material in electronic format together with the article and supply a concise and descriptive caption for each file. For more detailed instructions please visit our artwork instruction pages at http://www.elsevier.com/artworkinstructions.

    Google Maps and KML files

    KML (Keyhole Markup Language) files (optional): You can enrich your online articles by providing KML or KMZ files which will be visualized using Google maps. The KML or KMZ files can be uploaded in our online submission system. KML is an XML schema for expressing geographic annotation and visualization within Internet-based Earth browsers. Elsevier will generate Google Maps from the submitted KML files and include these in the article when published online. Submitted KML files will also be available for downloading from your online article on ScienceDirect. For more information see http://www.elsevier.com/googlemaps.

    Submission checklist

    The following list will be useful during the final checking of an article prior to sending it to the journal for review. Please consult this Guide for Authors for further details of any item.
    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
    • Phone numbers
    All necessary files have been uploaded, and contain:
    • Keywords
    • All figure captions
    • All tables (including title, description, footnotes)
    Further considerations
    • Manuscript has been 'spell-checked' and 'grammar-checked'
    • References are in the correct format for this journal
    • 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 Web)
    • Color figures are clearly marked as being intended for color reproduction on the Web (free of charge) and in print, or to be reproduced in color on the Web (free of charge) and in black-and-white in print
    • If only color on the Web is required, black-and-white versions of the figures are also supplied for printing purposes
    For any further information please visit our customer support site at http://support.elsevier.com.

    Additional Material
    The submission needs to be accompanied by a covering letter to the editor.

    Your cover letter should include the following:

    • Title, authors, number of pages, and number of tables and figures.
    • Indication that all the authors have read and approved the paper.
    • Description of how each author contributed to the manuscript and others who may have assisted.
    • Name of type of paper
    • Information about any previous presentation of the data (e.g., at a specific meeting or as a thesis).
    • Information about the existence of any closely related manuscripts that you have submitted for simultaneous consideration to the same or another journal.
    • Notice of any interests that might be seen as influencing the research (e.g., financial interest in a test or procedure, funding by pharmaceutical companies for drug research, etc.).
    • A copy of the permission granted to reproduce or adapt any copyrighted material from another source or a notice that permissions are pending. Indicate the original source(s) in the legend of the illustration, or as appropriate in a footnote to the text.
    • Please submit the CONSORT-check-list for articles that cover clinical trials, the ARRIVE-checklist for animal studies, and the PRISMA checklist for systematic reviews.
    • Names of three potential reviewers with complete contact details. As our objective is to obtain independent reviews that are free from bias, please do NOT suggest people with whom you have worked or published in recent years or anyone who works at your institution. There is no assurance that the editors will choose reviewers from the list you provided.

    Use of the Digital Object Identifier

    The Digital Object Identifier (DOI) may be used to cite and link to electronic documents. The DOI consists of a unique alpha-numeric character string which is assigned to a document by the publisher upon the initial electronic publication. The assigned DOI never changes. Therefore, it is an ideal medium for citing a document, particularly 'Articles in press' because they have not yet received their full bibliographic information. Example of a correctly given DOI (in URL format; here an article in the journal Physics Letters B):
    http://dx.doi.org/10.1016/j.physletb.2010.09.059
    When you use a DOI to create links to documents on the web, the DOIs are guaranteed never to change.

    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. Elsevier now provides authors with PDF proofs which can be annotated; for this you will need to download Adobe Reader version 9 (or higher) available free from http://get.adobe.com/reader. Instructions on how to annotate PDF files will accompany the proofs (also given online). The exact system requirements are given at the Adobe site: http://www.adobe.com/products/reader/tech-specs.html.
    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 return by fax, or scan the pages and e-mail, or by post. 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 – please let us have all your corrections within 48 hours. 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. Note that Elsevier may proceed with the publication of your article if no response is received.



    You can track your submitted article at http://help.elsevier.com/app/answers/detail/a_id/89/p/8045/. You can track your accepted article at http://www.elsevier.com/trackarticle. You are also welcome to contact Customer Support via http://support.elsevier.com.

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