Guide for Authors

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

• Ethics in Publishing
• Human rights
• Conflict of interest
• Submission declaration
• Changes to Authorship
• Article transfer service
• Copyright
• Copyright
• Role of the Funding Source
• Funding Body Agreements and Policies
• Funding body agreements and policies
• Open access
• Green open access
• Language services
• Submission
• Title Page and Abstract
• Style
• Figures
• Tables
• Readers' Comments
• Reference style
• Video data
• AudioSlides
• Supplementary data
• Submission checklist
• Use of the Digital Object Identifier
• Proofs
• Online proof correction
• Reprints

Published 24 times a year, The American Journal of Cardiology® is an international journal designed for cardiovascular disease specialists and internists with a subspecialty in cardiology. AJC is an independent, scientific, peer-reviewed journal of original articles that focus on the practical, clinical approach to the diagnosis and treatment of cardiovascular disease. AJC has one of the fastest acceptance to publication times in cardiology. Articles report on systemic hypertension, methodology, drugs, pacing, arrhythmia, preventive cardiology, congestive heart failure, valvular heart disease, congenital heart disease, and cardiomyopathy. Also included are editorials, readers' comments, and symposia.

Ethics in Publishing

For information on ethics in publishing and ethical guidelines for journal publication see and

Human rights

If the work reported 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; Uniform Requirements for manuscripts submitted to Biomedical journals The author 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.

Conflict 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 conflicts of interest include employment, consultancies, stock ownership, honoraria, paid expert testimony, patent applications/registrations, and grants or other funding. If there are no conflicts of interest then please state this: 'Conflicts of interest: none'. See also Further information and an example of a Conflict of Interest form can be found at:

Submission declaration

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, 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, including electronically in the same form, in English or in any other language, without the written consent of the publisher.

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) the Journal Manager will inform the Editor in Chief of any such requests, which will be made only at the Editor in Chief's discretion; 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.

Article transfer service

This journal is part of our Article Transfer Service. This means that if the article is not accepted for publication in AJC, the Editor in Chief may suggest the possibility of transferring it to another journal for consideration for publication. You may accept or decline; if you accept, your article will be transferred automatically on your behalf with no need to reformat. More information about this can be found here:


Upon acceptance of an article, authors will be asked to complete a 'Journal Publishing Agreement' (for more information on this and copyright, see 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 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

For open access articles: Upon acceptance of an article, authors will be asked to complete an 'Exclusive License Agreement' (for more information see Permitted third party reuse of open access articles is determined by the author's choice of user license (see

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


This journal offers you the option of making your article freely available via the ScienceDirect platform. To prevent any conflict of interest, you can make this choice only after receiving notification that your article has been accepted for publication. The fee of $3,000 excludes taxes and other potential author fees such as color charges. In some cases, institutions and funding bodies have entered into agreement with Elsevier to meet these fees on behalf of their authors. Details of these agreements are available at Authors of accepted articles who wish to take advantage of this option should complete and submit the order form (available at

Retained author rights
As an author you (or your employer or institution) retain many rights, including the right to post a revised personal version of your article on your own website. For more information on author rights see
For open access articles please see

Role of the Funding Source

Please identify who provided financial support for the research and/or preparation of the article and briefly describe the role of the sponsor(s), if any, in study design; in the collection, analysis, and interpretation of data; in writing 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. Please see

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

Funding body agreements and policies

Elsevier has established a number of agreements with funding bodies which allow authors to comply with their funder's open access policies. Some authors may also be reimbursed for associated publication fees. To learn more about existing agreements please visit
After acceptance, open access papers will be published under a noncommercial license. For authors requiring a commercial CC BY license, you can apply after your manuscript is accepted for publication.

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 on their behalf e.g. by their research funder or institution
• Articles are made available to subscribers as well as developing countries and patient groups through our universal access programs (
• No open access publication fee payable by authors.

Regardless of how you choose to publish your article, the journal will apply the same peer review criteria and acceptance standards.

For open access articles, permitted third party (re)use is defined by the following Creative Commons user licenses:

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.

The open access publication fee for this journal is USD 2750, excluding taxes. Learn more about Elsevier's pricing policy:

Green open access

Authors can share their research in a variety of different ways and Elsevier has a number of green open access options available. We recommend authors see our green open access page for further information ( Authors can also self-archive their manuscripts immediately and enable public access from their institution's repository after an embargo period. This is the version that has been accepted for publication and which typically includes author-incorporated changes suggested during submission, peer review and in editor-author communications. Embargo period: For subscription articles, an appropriate amount of time is needed for journals to deliver value to subscribing customers before an article becomes freely available to the public. This is the embargo period and begins from the publication date of the issue your article appears in.

This journal has an embargo period of 12 months.

Language services

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. See or visit our customer support site for more information.


Submission to this journal for full length reports, case reports, review articles, editorials, historical studies, 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, eliminating the need for a paper trail.

Submit your article
Please submit your article via .

MANUSCRIPTS are received with the understanding that they are submitted solely to The American Journal of Cardiology and, that upon submission they become the property of the Publisher, that the work has not been previously published, and that the data in the manuscripts have been reviewed by all authors, who agree with the analyses of the data and the conclusions reached in the manuscript. The publisher reserves copyright and renewal on all published material, and such material may not be reproduced without the written permission of the Publisher. Statements in articles are the responsibility of the authors. The Journal does not accept original articles involving animal research.

As of May 1, 2005, all new manuscripts, including Readers' Comments and Errata, must be submitted through The American Journal of Cardiology online ( or ( Authors are requested to submit the text, tables, and figures in electronic form to this address. The Publisher and Editors regret that they are not able to consider submissions that do not follow these procedures. Please include the corresponding author's phone and email address. The cover letter should state precisely and concisely the significance and uniqueness of the work in the authors' view. The authors may state the extent of any concessions they are prepared to make (for example, the elimination of 1 or more figures or tables or a portion of the text) to increase the likelihood of publication of their work in the Journal. If possible, names and email addresses should be provided of non-local experts who, in the view of the author(s), could provide objective and informed reviews of their work. The names of investigators considered unlikely to give nonbiased reviews of their work also may be submitted. This request is honored.

Please note that an editable file is needed for production purposes after acceptance, and we ask that you submit source files in the event your manuscript is accepted.

Study recent past issues of the Journal for format. Arrange the paper as follows: (1) title page, which should include the title, the full names and academic degrees of the authors, and current affiliations of all authors; (2) abstract; (3) text; (4) acknowledgement; (5) references; (6) figure legends; (7) tables; and (8) figures. Number the title page as 1, abstract page as 2 with the introduction beginning on page #3 and so forth. Type double-spaced (including references) with at least 25-mm (l-inch) margins, sized for 8.5 x 11 inch paper. Files should be labeled with appropriate and descriptive file names. Upload text, tables and graphics as separate files. Do not import figures or tables into the text document. Complete instructions for electronic artwork submission can be found on the Author Gateway, accessible through the journal home page.

Title Page and Abstract

For the complete title page, include the full first or middle and last names of all authors. List the current affiliations of all authors and link author names and affiliations by “a,” “b,” “c,” etc., after the author names and before the affiliation. Provide information about grant support if necessary, including the location (City/state/country). If work described is supported by a grant from a pharmaceutical company, that fact should be stated on the title page. Add at the bottom the phrase "Corresponding author" followed a telephone number, email address, and mailing address. Add a 2-to 6-word running head. Limit the abstract to 250 words or a single page. List 2 to 4 key words for subject indexing at the end of the abstract.


Use the required 3 major headings throughout the body of the text, such as Methods, Results, and Discussion. Do not use subheadings under these headings. Tables, figures, and references must be cited in numerical order throughout the manuscript. Abbreviations are permitted, but usually no more than 5 or 6 per manuscript (at the Editor's discretion), and then they must be used on every page of the manuscript after they are initially spelled out (followed by the abbreviation) in both abstract and introduction. Use generic names of drugs. Do not spell out any number, including those less than 10, except when used for opening a sentence, but try not to begin sentences with a number. Use symbols for less than (<), greater than (>) and percent (%). Indent all paragraphs after the abstract and introduction. Both the abstract and introduction should be a single paragraph. Consult the Uniform Requirements for Manuscripts Submitted to Biomedical Journals, published in The Annals of Internal Medicine June 1982;96:766-771, and also the Stylebook/Editorial Manual of the AMA.


Number figures in order in which they are mentioned in the text. Type figure legends on a separate page, double-spaced, after the references within the text document. Clearly mark figures with a, b, c, top, bottom, right and left.

Download each figure as a separate file (.tif .eps, .jpeg formats are preferred, although .ppt, .xls, .pdf, and .doc files are accepted.). Do not import figures into the text document. Complete instructions for electronic artwork submission can be found on the Author Gateway, accessible through the journal home page. Submit written permission from the publisher and author to reproduce any previously published figures. Limit figures to the number necessary to present the message clearly. Figure resolution must be a minimum of 300 dpi. Type figure legends on a separate page, double-spaced after the references. Identify at the end of each legend and in alphabetical order all abbreviations in the figure. The cost of color reproduction must be paid by the author.


Number each table in Arabic numerals (Table 1, 2, etc.) and title each table. Download each table as a separate Word file. Identify in alphabetical order at the bottom of the table all abbreviations used. When tabulating numbers of patients, use no more than 2 lines preferably only 1 line across per patient. Use a plus sign (+) to indicate “positive” or “present” a zero (0) for “negative” or “absent” and a dash (–) for “no information available” or “not done.” Do not use “yes”, “no” or “none.”

Readers' Comments

The author who submits a ‘letter’ should provide a cover letter to the Editor in Chief explaining why the letter should be published. The letter (as well as references) should be double-spaced, and limited, with few exceptions, to 2 pages. A title for the letter should be provided at the top of the page. A title page is not required. At the end of the letter, the writer's full name, highest degree, and city and state (or country if outside the US) should be provided followed by the date of submission. The author's institution should not be included. A letter concerning a particular article in the Journal must be received (from authors within the US) within 2 months of the article's publication.

Reference management software
Most Elsevier journals have a standard template available in key reference management packages. This covers packages using the Citation Style Language, such as Mendeley ( and also others like EndNote ( and Reference Manager ( Using plug-ins to word processing packages which are available from the above sites, authors only need to select the appropriate journal template when preparing their article and the list of references and citations to these will be formatted according to the journal style as described in this Guide. The process of including templates in these packages is constantly ongoing. If the journal you are looking for does not have a template available yet, please see the list of sample references and citations provided in this Guide to help you format these according to the journal style.

If you manage your research with Mendeley Desktop, you can easily install the reference style for this journal by clicking the link below:
When preparing your manuscript, you will then be able to select this style using the Mendeley plug-ins for Microsoft Word or LibreOffice. For more information about the Citation Style Language, visit

Reference style

List all authors, year, volume, and inclusive pages for all journal references, and specific page numbers for all book references as shown below. Do not use periods after authors' initials or after abbreviations for titles of journals. Check Index Medicus or Annals of Internal Medicine (June 1982) as cited above for journal titles/abbreviations. Personal communications and unpublished observations do not constitute references, but may be mentioned within the text. Articles with incorrect reference formats will not be processed. Do not use “et al” – the names of all authors must be included. All references must be typed out at the end of the article on a new page. Please do not use the footnote or endnote functions in your word processing program.

  • Journal: Harvey W, Herberden W, Withering W, Stokes W, Murrell W, Einthoven W, Osler W. Anomalies and curiosities of cardiology and cardiologists. Reflections of famous medical Williams. Am J Cardiol 1984;53:900-915.
  • Chapter in Book: Cabot RC, White PD, Taussig HB, Levine SA, Wood P, Friedberg CK, Nadas AS, Hurst JW, Braunwald E. How to write cardiology textbooks. In: Hope JA, ed. A Treatise on Disease of the Heart and Great Vessels. London: Yorke Medical Books, 1984: 175-200.
  • Book: Carrel A, Cutler EC, Gross RE, Blalock A, Craffoord C, Brock RC, Bailey CP, DeBakey ME. The Closing of Holes, Replacing of Valves and Inserting of Pipes, or How Cardiovascular Surgeons Deal with Knives, Knaves and Knots. New York: Yorke University Press, 1984:903.

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 encouraged to include links to these within the body of the article. This can be done in the same way as for an illustration 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. To ensure that your video or animation material is usable, please provide the files in one of our recommended file formats with a 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: Please supply still photos 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 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.


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 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: To ensure that your submitted material is 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 legend for each file. For more detailed instructions please visit our artwork instruction pages at

Submission checklist

Before you submit your article, please be sure that:
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:
• All illustration legends
• All tables (including title, description, footnotes)
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 illustrations 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 illustrations are also supplied for printing purposes
For any further information please visit our customer support site at

Use of the Digital Object Identifier

The Digital Object Identifier (DOI) may be used to cite and link to electronic documents. The DOI is a unique alpha-numeric character string 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):


One set of page proofs (as PDF files) will be sent by e-mail to the corresponding author or a link will be provided in the e-mail so that author can download the files.The PDF proofs can be annotated, for which you will need to download Adobe Reader version 7 (or higher) available free from 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 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 send by e-mail or by post. Please use this proof only for checking the typesetting, editing, completeness, and correctness of the text, tables, and illustrations. Significant changes to the article as accepted for publication will be considered at this stage only 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.

Online proof correction

Corresponding authors will receive an e-mail with a link to our online proofing system, allowing annotation and correction of proofs online. The environment is similar to MS Word: in addition to editing text, you can also comment on figures/tables and answer questions from the Copy Editor. Web-based proofing provides a faster and less error-prone process by allowing you to directly type your corrections, eliminating the potential introduction of errors.
If preferred, you can still choose to annotate and upload your edits on the PDF version. All instructions for proofing will be given in the e-mail we send to authors, including alternative methods to the online version and PDF.
We will do everything possible to get your article published quickly and accurately. 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. 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.

For inquiries relating to the submission of articles (including electronic submission) please visit this journal's homepage ( For detailed instructions on the preparation of electronic artwork, please visit Contact details for questions arising after acceptance of an article, especially those relating to proofs, will be provided by the publisher. You can track accepted articles at You can also check our Author FAQs at and/or contact Customer Support via


Price schedules and order cards for reprints are mailed to the author upon publication of the article. Individual reprints must be obtained through the author.