AMA Citation: Student Guide to Medical Source Formatting

AMA citation is commonly used in medicine, nursing, pharmacy, public health, and other health science courses.

It helps students cite journal articles, books, websites, reports, and clinical sources in a clear numbered system. Unlike APA or MLA, AMA does not use author-date or author-page citations in the text.

This guide explains how AMA citation works, how to format common source types, and what to check before submitting a medical or health science paper.

Quick Answer to AMA Citation

AMA citation is the citation style of the American Medical Association. It uses superscript numbers in the text and a numbered References list at the end of the paper. Sources are numbered in the order they first appear.

In-text citation example:

Hand hygiene remains one of the most effective ways to reduce healthcare-associated infections.¹

Reference list example:

1. Smith JA, Lee M. Infection prevention in clinical settings. J Health Sci. 2023;18(2):45-52. doi:10.1234/jhs.2023.018

The same source keeps the same number every time you cite it. If Smith and Lee are reference 1, they remain reference 1 throughout the paper.

What Is AMA Citation?

AMA citation is a medical and scientific citation style used to document sources in health-related writing. It is based on the rules in the AMA Manual of Style, which is widely used by medical writers, researchers, editors, and students. For detailed official rules, students can consult the AMA Manual of Style.

AMA style is common in:

• medicine

• nursing

• pharmacy

• public health

• epidemiology

• biomedical science

• health administration

• clinical research

The purpose of AMA citation is to keep medical writing readable while still giving readers a clear path to the sources behind each claim. Since health science papers may cite many studies, numbered citations help prevent the text from becoming crowded with author names and dates.

How AMA In-Text Citations Work

AMA in-text citations usually appear as superscript numbers. The number is placed near the statement, statistic, quotation, or idea it supports.

Example:

Early screening can improve treatment outcomes for some chronic conditions.¹

The first source cited in your paper becomes 1. The second new source becomes 2. The third new source becomes 3, and the numbering continues in order.

If you cite the same source again later, use the same number.

Example:

Patient education may also improve adherence to long-term treatment plans.¹

Do not assign the same source a new number just because it appears in a later paragraph.

AMA Citation With Multiple Sources

When one sentence is supported by more than one source, include more than one superscript number.

Example:

Several studies have linked patient education with improved medication adherence.¹˒²˒³

If the sources are consecutive, some instructors or journals may allow a range.

Example:

Several studies have linked patient education with improved medication adherence.¹⁻³

Follow your instructor’s preferred format if they provide one.

AMA Citation With Page Numbers

AMA does not use page numbers in the same way MLA does, but you may include page numbers when citing a direct quote or a specific part of a source.

Example:

The authors described patient communication as “a central part of safe clinical practice.”¹(p45)

Use direct quotes sparingly in medical and health science writing. Paraphrasing is often preferred, but exact quotations still need clear citation.

How the AMA References List Works

The AMA References list appears at the end of the paper. It is numbered according to the order sources first appear in the text, not alphabetically.

The reference number in the text must match the same numbered entry in the References list.

AMA Citation Format by Source Type

AMA references change depending on the source type. Journal articles, books, websites, and reports all require different details.

Journal articles are some of the most common sources in AMA style, so students should pay close attention to author initials, journal abbreviations, volume, issue, pages, and DOI.

Complete AMA Citation Example

Here is a complete AMA example for a journal article.

Source information:

• Authors: Jennifer A. Smith and Michael Lee

• Article title: Infection prevention in clinical settings

• Journal title: Journal of Health Science

• Year: 2023

• Volume: 18

• Issue: 2

• Pages: 45–52

• DOI: 10.1234/jhs.2023.018

Sentence in the paper:

Hand hygiene remains one of the most effective ways to reduce healthcare-associated infections.¹

Reference entry:

1. Smith JA, Lee M. Infection prevention in clinical settings. J Health Sci. 2023;18(2):45-52. doi:10.1234/jhs.2023.018

This example is correct because the in-text citation uses a superscript 1, and the matching reference entry begins with 1. The authors are written with last names followed by initials, without periods between initials. The article title appears in plain text. The journal title is abbreviated and italicized. The year, volume, issue, page range, and DOI appear in AMA order.

If you cite the same article again later in the paper, use ¹ again. Do not create a second reference number for the same source.

AMA Journal Article Citation

Journal articles are central to medical and health science writing.

Reference entry:

2. Patel R, Nguyen L. Patient education and medication adherence in primary care. J Clin Health. 2022;11(4):210-218. doi:10.1234/jch.2022.011

In-text citation:

Patient education can improve medication adherence in primary care settings.²

This citation includes the authors, article title, abbreviated journal title, year, volume, issue, pages, and DOI.

AMA Book Citation

Books may be used for background information, clinical concepts, research methods, or established health science principles.

Reference entry:

3. Carter ML. Introduction to Public Health Research. 3rd ed. Medical Academic Press; 2021.

In-text citation:

Public health research often connects individual outcomes to broader population patterns.³

If the book is a first edition, you usually do not need to include “1st ed.” Include the edition only when it is listed and relevant.

AMA Website Citation

Websites can be cited in AMA style, but students should use reliable sources such as government agencies, universities, hospitals, medical organizations, and peer-reviewed health resources.

Reference entry:

4. Centers for Disease Control and Prevention. Hand hygiene in healthcare settings. CDC. Updated May 4, 2024. Accessed June 26, 2026. https://www.cdc.gov/handhygiene/

In-text citation:

National public health agencies continue to emphasize hand hygiene as a basic infection prevention measure.⁴

For websites, include the author or organization, page title, website name, publication or update date when available, access date, and URL. If a webpage has no individual author, use the organization responsible for the content.

AMA Citation vs. APA Citation

AMA and APA are both used in academic writing, but they work differently.

A common mistake is using APA-style citations in an AMA paper. If your assignment requires AMA, do not write (Smith, 2023) in the text. Use numbered superscript citations instead.

Common AMA Citation Mistakes

Tips for Checking AMA Citations Before Submitting

First, read through your paper from the beginning and number sources by first appearance. The first source should be 1, the second new source should be 2, and repeated sources should keep their original numbers.

Next, review your References list. It should follow the same order as your in-text citations. Do not alphabetize it unless your instructor gives a different rule.

Then check each reference entry for complete source information. Journal articles should include authors, article title, journal abbreviation, year, volume, issue, pages, and DOI when available. Websites should include an access date and a direct URL.

Finally, make sure you use AMA style throughout the paper. Do not mix AMA superscript numbers with APA references or MLA punctuation.

FAQ About AMA Citation

What is AMA citation?

AMA citation is the American Medical Association citation style. It is commonly used in medicine, nursing, pharmacy, public health, and biomedical science.

What does an AMA in-text citation look like?

AMA in-text citations usually appear as superscript numbers, such as ¹ or ². Each number points to a matching reference entry.

Is an AMA reference list alphabetical?

Usually, no. AMA references are listed in the order sources first appear in the text.

How do you cite a journal article in AMA?

Include the authors, article title, abbreviated journal title, year, volume, issue, pages, and DOI when available.

Is AMA the same as APA?

No. APA uses author-date citations, while AMA uses numbered superscript citations and a numbered References list.

What happens if I cite the same source again in AMA?

Use the same number assigned the first time the source appeared. Do not give the source a new number.

Conclusion

AMA citation is designed for medical and health science writing, where papers often cite many studies, reports, and clinical sources. Its numbered system keeps the text concise while linking every claim to a full reference entry. Before submitting your paper, check that citations appear in first-use order, repeated sources keep the same number, and every reference includes the details readers need to find the source.