For Authors
About the JournalSubmission and Publication
Disclosure/Conflict of Interest
Article Types
General Manuscript Preparation
Supplementary Material
Complete Guide to Authors
Contact Information
Top of page
About the Journal
AIMS AND SCOPE: The American Journal of Gastroenterology publishes original articles, clinical and systematic reviews, and letters to the editor. Articles are accepted for publication on the condition that they are submitted solely to the American Journal of Gastroenterology.
Read the complete Aims and Scope
IMPACT FACTOR: 6.101*
ISSN: 0002-9270
EISSN: 1572-0241
FREQUENCY: Printed monthly. Advance Online Publication once weekly.
*2007 Journal Citation Report (Thomson Reuters, 2008)
Top of pageSubmission and Publication
SUBMISSION: Manuscripts must be submitted online. Instructions on uploading manuscripts are at http://mc.manuscriptcentral.com/ajg. The editors and publishers are not responsible for the opinions expressed by contributors to the Journal. Accepted manuscripts become the permanent property of the American College of Gastroenterology and may not be reproduced by any means, in whole or in part, without the written permission of both the author and the publisher.
COPYRIGHT ASSIGNMENT: The corresponding author must complete the Copyright Assignment form (under “Instructions & Forms” at http://mc.manuscriptcentral.com/ajg) upon acceptance of the manuscript and return it to the editorial office. Accepted papers will not be sent for publication until this form has been submitted.
ADVANCE ONLINE PUBLICATION: All original articles, reviews, clinical practice guidelines, and letters to the editor are published ahead of print on Advance Online Publication. This is the final version that will subsequently appear, unchanged, in print.
PROOFS: The corresponding author will be e-mailed a URL link from which to collect proofs. Proofs must be returned within 48 hours of receipt.
Top of pageDisclosure/Conflict of Interest
The Journal's strategy to protect against conflicts of interest calls for actual or potential conflicts of interest to be made public and accessible to the editorial staff and the readership of the Journal. A submitted manuscript will not be reviewed for publication until a conflict of interest disclosure is submitted. The following information must be provided:
- The author acting as the submission's guarantor must be identified.
- The authors must certify the role that each author had in conceiving, initiating and writing up the research project.
- Declaration of all financial and, if relevant, any editorial assistance received to support the research project and/or preparation of the article.
- Identification of any relationships that any author or other entity that provided financial or editorial support may have in potential competing interests to those referenced in the submission.
Article Types
ORIGINAL ARTICLES: All manuscripts must include the following section headings:
Introduction: the aims and an a priori hypothesis must be stated.
Methods: must include sufficient information by which to judge the quality of the research.
Results: do not duplicate results presented in the text and tables.
Discussion: consider stating the principal findings, the strengths and weaknesses of the study, differences in results, the meaning of the study, including possible explanations and implications for clinicians and policymakers, and a commentary considering unanswered questions and future research.
Authors are required to include a “Study Highlights” section, which should contain two headings: 1) WHAT IS CURRENT KNOWLEDGE and 2) WHAT IS NEW HERE, followed by short bullet points, for example:
STUDY HIGHLIGHTS:
- WHAT IS CURRENT KNOWLEDGE
- Heartburn is common and costly.
- The impact of reflux symptoms on mortality is poorly documented.
- WHAT IS NEW HERE
- Reflux symptoms do not increase risk of poorer survival.
- Those with intermediate frequencies of reflux symptoms had better survival.
- Gastroesophageal reflux symptoms are a benign condition in most sufferers.
EDITORIALS: Editorials require a short (fewer than 100 words) abstract and must consist of no more than 1000 words excluding references.
META-ANALYSIS REVIEWS and REVIEWS: Substantive reviews of systematic and clinical topics will be evaluated by peer review prior to consideration. The abstract should contain the following headings: OBJECTIVES, METHODS, RESULTS, CONCLUSIONS. Inclusion of color illustrations is strongly encouraged. Reviews should be no longer than 2500-3000 words, excluding references, figures, and tables. Meta-analyses of genetic studies are required to follow the HuGENet guidelines, available at http://www.cdc.gov/genomics/hugenet.
RANDOMIZED CONTROLLED TRIALS (RCTs): All data must be reported in accordance with the CONSORT (Consolidated Standards of Reporting Trials) statement. Provide the following, as described in the CONSORT statement:
- five extra subheaded sections in the main text of the paper—PROTOCOL, ASSIGNMENT, MASKING, PARTICIPANT FLOW AND FOLLOW-UP, and ANALYSIS—and
- a completed checklist for editors and reviewers (not for publication) showing that you have described 21 key points in your report.
Additional information is available at http://www.consort-statement.org. All original research needs IRB or Ethics Committee approval. The authors of RCTs are required to register their trial at one of the appropriate registries. This registration should be noted in the text of the RCT.
LETTERS TO THE EDITOR:
- Letters must be submitted within 3 months of publication of the subject article, should not exceed 400 words, must cite as a reference the subject article, and should include no more than five other references.
- Letters that contain a case report should contain no more than 600 words and two figures.
- Brief reports of studies follow the same format guidelines as case reports.
General Manuscript Preparation
Please note all checklists required under “Instructions and Forms.” The title page should include:
- the article title (not to exceed 150 characters),
- a short title (running head) of no more than 50 characters
- all authors' names, affiliations, and locations, and the name and addresses (postal and e-mail) of the corresponding author.
Reprinted material: Authors must obtain written permission from the copyright owner to reproduce any previously published figure, table, or other material in both print and electronic formats. The original source should be cited.
References: Number references consecutively in the order in which they are cited in the text. The format should conform to the examples below.
- Schindlbeck NE, Ippisch H, Klauser AG et al. Which pH threshold is best in esophageal pH monitoring? Am J Gastroenterol 1991;86:1138-41.
- Reuter SR, Redman HC. Gastrointestinal Angiography, 2nd edn. WB Saunders: Philadelphia, 1977.
- McCann JD. Genomic perspectives on probiotics. In: Tanner FX (ed). Probiotics and Prebiotics. Oxford University Press: Oxford, UK, 2001, pp 160-9.
Tables: Each table should have a brief title and be self-explanatory.
Figures: Detailed guidelines for submitting artwork can be found at http://www.nature.com/aj/artworkguidelines.pdf. Color illustrations are encouraged. Figure legends should be submitted in a list at the end of the manuscript. If the figure is being reprinted from another source, include the credit line in the legend.
Top of pageSupplementary Material
Refer to each item in the main article, e.g., “See Supplementary Figure 1 online.” Supplementary material must be supplied to the editorial office for peer review. The final version should be submitted with the accepted paper through Manuscript Central (see the list and file-preparation guidelines at http://www.nature.com/ajg/ajgguidetoauthors.pdf). Include a description (no more than 50 words) of the contents of each file, e.g., “Supplementary Video 1 Gut motility markedly altered after acute T. spiralis infection.”
INVESTIGATIONS INVOLVING HUMAN SUBJECTS: All papers on clinical research that involves human subjects must be accompanied by evidence of Institutional Review Board or Ethics Committee Review. The date the project was approved, when available, should be included in the paper.
CONFLICT OF INTEREST/STUDY SUPPORT: Following the references, include a section with the following headings:
Guarantor of the article: the author who is accepting full responsibility for the conduct of the study.
Specific author contributions: the role played by each author. For each author, there should also be a statement that he or she has approved the final draft submitted.
Financial support: funding sources for the publication. Describe the role of any study sponsors. If there was funding but the work was independent of it, this must be specifically stated.
Potential competing interests: all potential conflicts (or state “None”).
Complete Guide to Authors
Read the complete Guide to Authors at http://www.nature.com/ajg/ajgguidetoauthors.pdf.
Top of pageContact Information
Editorial: American Journal of Gastroenterology, 982020 Nebraska Medical Center, Omaha, NE, USA 68198-2020. Tel: 402-559-5512. Fax: 402-559-9005.
Managing Editor: Vincent Furlong, vfurlong@unmc.edu.
Business:
Desirée de Myer
Publishing Manager
Tel: +1 212 726 9607
Fax: +1 646 563 7089
E-mail: d.demyer@us.nature.com
Andy Lam
Publishing Assistant
Tel: +1 212 726 9296
E-mail: a.lam@us.nature.com
