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AMA Citation Guide

MGH IHP's guide to AMA Style Manual

Getting Started with Reference Lists and Citations

The reference list is arranged in numerical order, based on the in-text citations. The entire list is single-spaced and flushed with the left margin (unlike in APA style, where the reference list is double-spaced and uses a hanging indent).

Author Names

Before we go into the basics for various citation types, here’s a quick overview on how to write out author names using AMA Style.

  • One author: Doe JF.
  • Two authors: Doe JF, Roe JP III.
  • Six authors: Doe JF, Roe JP III, Coe RT Jr, Loe JT Sr, Poe EA, van Voe AE.
  • More than six: Doe JF, Roe JP III, Coe RT Jr, et al.

Abbreviating Journal Names

In AMA Style citations, you should write the abbreviated version of the journal title and italicize it in your reference list. To find the appropriate abbreviated title, visit the National Center for Biotechnology Information (NCBI) NLM Catalog.

Finding and Using Digital Object Identifiers (DOIs)

A Digital Object Identifier (DOI) is a permanent address to an article or other electronic source that will continue to lead a reader to the source even if the source's web address has changed multiple times.

AMA Format for DOIs

Finding DOIs

Most articles will include the DOI with the citation information. If you can't find it there, go to www.crossref.org. Click on Search Metadata, and enter the title of the your article into the search box. If your article has a DOI, it will appear on the results page. Watch the video tutorial below or view the print tutorial.

Not every article will have a DOI. Only those articles from scholarly journals published from about the mid-1990's on.

Example References

This guide uses tabs to organize content. Follow the instructions below on how to navigate using tabs.

  1. Browse by Citation Category: Click on any of the tabs above to view links categorized by type.
  2. Switch Between Tabs: Simply click on a different tab to explore other categories. The content for each category will appear directly below.
  3. Find What You Need: Each tab contains basic citation format and examples relevant to its category, making it easier for you to find specific types of information.

If you have any questions, please don't hesitate to reach out to one of our librarians!

Journal Articles

There are two basic formats for citing journal articles:

Print:

Author(s). Article title. Abbreviated Journal Name. Year;vol(issue No.):inclusive pages. DOI, if provided.

Online:

Author(s). Article title. Abbreviated Journal Name. Publication date. DOI, if provided

Examples:

Mensinger JL, Calogero RM, Stranges S, Tylka TL. A Weight-Neutral Versus Weight-Loss Approach for Health Promotion in Women with High Bmi: A Randomized-Controlled Trial. Appetite. 2016;105:364-374. doi:10.1016/j.appet.2016.06.006

Anderson LM, Scrimshaw SC, Fullilove MT, Fielding JE, Normand J. Culturally competent healthcare systems. American Journal of Preventive Medicine. 2003;24(3):68-79. doi:10.1016/S0749-3797(02)00657-8

Preprints

Preprints are frequently articles that will eventually be published in a peer-reviewed journal, but are uploaded to a preprint server, typically without formatting or editing, such as MedRxiv or bioRxiv.org. Below is an example of how to cite an article found on the MedRxiv preprint server:

Riad R, Denais M, de Gennes M, et al. (2024). Automated speech analysis for risk detection of depression, anxiety, insomnia, and fatigue: Algorithm Development and Validation Study (p. 2024.03.20.24304577). medRxiv. https://doi.org/10.1101/2024.03.20.24304577

Books

Just like with journal articles, there are two primary styles of citations used for books:

Print:

Author(s). Book Title. Edition number (if it’s the second edition or later). Publisher’s name; copyright year.

Online:

Author(s). Book Title. Edition number (if it’s the second edition or later). Publisher’s name; copyright year. Accessed [date]. URL (or DOI, if provided)

Examples:

Gordon A. What We Don’t Talk About When We Talk About Fat. Beacon Press; 2020.

Bodenheimer T, Grumbach K. Understanding Health Policy: A Clinical Approach. 5th ed. McGraw-Hill;2009. Accessed September 25, 2024. doi:10.1036/0071496068

Chapter in a Book

If you’re citing a chapter in a book that has been contributed to by multiple authors, you can cite just the specific chapter that you are referencing. The following example comes from the AMA Manual of Style book1.

Prince M, Glozier N, Sousa R, Dewey M. Measuring disability across physical, mental, and cognitive disorders. In: Regier DA, Narrow WE, Kuhl EA, Kupfer DJ, eds. The Conceptual Evolution of DSM-5. American Psychiatric Publishing Inc; 2011:189-227.

Web Pages

The basic format of citing a webpage is as follows:

Author (or, if no author is available, the name of the organization responsible for the site). Title (or if no title is available, the name of the organization responsible for the site). Name of the website. Published [date]. Updated [date]. Access [date]. URL

Example

National Black Nurses Association. Events. Accessed September 24, 2024. https://nbna.org/events/

Social Media

Due to the fluid nature of social media posts, it may be best to avoid citing content from social media sites. Below are some examples of how you could cite these sources, if necessary, from the AMA Manual of Style book1.

Facebook

Mayo Clinic Sports Medicine Facebook page. #RotatorCuff tears are among the most common shoulder injuries, particularly in individuals who engage in activities that require repetitive arm motions. Discover the possible treatment options for a torn rotator cuff: https://mayocl.in/2H6AR3P. Accessed March 4, 2019. https://www.facebook.com/mayoclinicsportsmedicine

Blogs

Ehrhardt A. Odds and ends. AMA Style Insider blog. July 12, 2024. Accessed September 24, 2024. https://amastyleinsider.com/2024/07/18/odds-and-ends/

YouTube/Video Recordings

MGH Institute. What is a Subject Heading? [Video recording]. October 11, 2023. Accessed September 24, 2024. https://vimeo.com/873445498

SaludAmerica. Building Support for Latino Families [Video recording]. October 17, 2017. Accessed September 24, 2024. https://www.youtube.com/watch?v=pr0GZvPPpzM

Government/Organization Reports

Reports are often formatted similarly to journal articles and books. While you are asked to provide the dates for when the work was published, updated, and accessed, occasionally, you may only have access information available - that is ok.

US Department of State. Integrated Country Strategy: Canada. Approved May 26, 2022. Accessed September 24, 2024. https://www.state.gov/wp-content/uploads/2022/07/ICS_WHA_Canada_Public.pdf

World Health Organization. World health statistics 2024: monitoring health for the SDGs, sustainable development goals. May 21, 2024. Accessed September 24, 2024. https://iris.who.int/bitstream/handle/10665/376869/9789240094703-eng.pdf

Personal Communications

Interviews, conversations, emails and electronic mailing list messages (those coming from LISTSERVs) should be treated like personal communications and cited in-text in a parenthetical style. Below are some examples of how you could cite these sources, from the AMA Manual of Style book1.

Similar findings have been noted by Roberts6 and by H. E. Marman, MD (email communication, August 1, 2015).

According to the manufacturer (H. R. Smith, PhD, Pharma International, written communication, May 1, 2015), the drug became available in Japan in January 2014.

(J. Smith, personal communication, August 8, 2016)

These citations will not appear in the reference list.

Database Citations

Welcome to our Database Citation (and Stumpers) page, where you'll find answers to those hard to cite resources. If you don't find what you need here, just Ask a Librarian.

UpToDate

Basic Format

Article Author. Article title. UpToDate. http://www.utdol.com. Published date.  Updated date.  Accessed date.

[include as many of the dates as you can]

Example

Caplan, LR. Clinical diagnosis of stroke subtypes. UpToDate. http://www.utdol.com. Updated November 13, 2013.  Accessed June 5, 2015.

Micromedex

Basic Format

Article title. Micromedex Solutions. Greenwood Village, CO: Truven Health Analytics. http://micromedex.com/. Updated date. Accessed date.

[look for the link to View Full Document to find a "last modified" date that you can use for Updated date in the citation]

Example

Chronic fatigue syndrome. Micromedex SolutionsGreenwood Village, CO: Truven Health Analytics. http://micromedex.com/. Updated June 24, 2015. Accessed July 22, 2015.

LexiDrug—formerly Lexicomp

Basic Format

Article title. Title of Lexidrug section. Hudson, OH: UpToDate Inc, Copyright date. http://online.lexi.com/. Updated date. Accessed date.

Example

Sertraline. Lexi-Drugs. Hudson, OH: UpToDate Inc, 2015. http://online.lexi.com/. Updated July 27, 2015. Accessed August 3, 2015.

ChatGPT or other AI Tools

If you’re using ChatGPT or other Generative AI tools to help with your research, AMA recommends that you include descriptions of how you used the tool in the text, not in the formal reference list. Including this information helps “promote transparency, reproducibility, and accountability”1. When referring to your use of AI, include the version and producer of the AI tool you are using:

(ChatGPT version 3.5, Open AI) or (Gemini 1.5 Flash model, Google)

Looking for help with AI? We're working on a student guide for generative AI usage, but the Faculty Generative AI Guide has a list of tools that you may find useful in the meantime.