Use NLM/ICMJE rules, number citations in order, and list full references to keep a medical review clear and consistent.
Writing a medical review pulls dozens of papers into one clear story. Readers need to see where every statement came from. That means tight, consistent citations that match the journal’s rules. This guide walks you through what style to use, how to handle in-text numbering, what to include in each reference, and the easy checks that stop desk rejections.
How To Cite References For A Medical Review: Quick Start
Start with the house style. Many clinical journals follow the NLM system adopted by the ICMJE. That approach numbers sources in the order they appear and lists full details at the end. If your target journal uses AMA, you still get a numeric system with near-identical parts. Pick one path and stick to it from the first line.
- Choose the journal, open its author instructions, and confirm the citation style.
- Add in-text numbers as you draft, not after. Use superscripts or bracketed numbers per the journal.
- Build your reference list with the exact fields required by NLM/ICMJE.
- Check abbreviations for journal titles using the NLM Catalog.
- Run a final audit for numbering order, duplicates, and missing elements.
Citation Styles At A Glance
The matrix below shows how the most common systems handle in-text cues and the tail list. Pick the one your journal requires.
| Style | In-Text Signal | Reference List Pattern |
|---|---|---|
| NLM/ICMJE (Vancouver) | Superscript or bracketed numbers in order | Numbered list; journal titles abbreviated; DOI when available |
| AMA | Superscript numbers in order | Numbered list; journal titles abbreviated; DOI when available |
| APA (when a journal asks for it) | Author-date in text | Alphabetized list by author; full journal titles |
In-Text Citations: Numbers, Placement, And Ranges
Use consecutive numbers. The first source you cite is 1, the next is 2, and so on. Keep the same number every time you cite the same study. Place the superscript or bracket right after the clause it supports and before punctuation unless the journal says otherwise. Group adjacent citations like 3–5, 7, 9. Avoid dense strings that slow reading; break complex claims into shorter sentences with their own signals.
Reference List Basics: What Editors Expect
Every entry needs enough data to locate the source fast. For journal articles, that includes authors, title, journal title in NLM abbreviation, year, volume, issue, and page range. Many journals also want a DOI. For online material, add the access date and URL if no DOI exists. Keep punctuation exact; tiny details show care and speed up indexing.
Author Names: How Many To List
NLM format lists all authors when there are six or fewer. If there are seven or more, list the first six followed by “et al.” AMA uses the same rule in practice. Keep surnames and initials without periods, and preserve the author order from the paper. Group names with commas; no “and” before the last author.
Titles And Journal Abbreviations
Write article titles in sentence case. Abbreviate journal names using the NLM Catalog so the abbreviation matches PubMed. Do not invent short forms. If a journal is not indexed, write the full title. Keep capitalization and punctuation consistent across the list.
DOIs, URLs, And Access Dates
Prefer a DOI when it exists. Present it as a DOI string without the “https://doi.org/” prefix unless the journal asks for a link. If no DOI is available, add a stable URL. Include an access date only when the content can change or when the journal instructs you to add one.
Source Types You Will Cite
Medical reviews blend randomized trials, cohort studies, meta-analyses, guidelines, preprints, and datasets. Each source type carries slightly different fields. The list below covers common cases with quick cues that keep your references clean.
Journal Articles
Core parts: authors, title, journal abbreviation, year, volume(issue):pages, and DOI if available. Use an en dash in page ranges. For article numbers, include the e-locator in place of pages.
Preprints
State the server, year, and the unique identifier. Many journals ask you to label the item as a preprint. If the preprint later appears in a journal, update the citation to the published version and keep the in-text number the same.
Guidelines And Government Documents
Give the organization as the author when no person is named. Include the title, publisher, year, report number when present, and a URL or DOI. Add an access date when the content can change, such as a living guideline.
Books And Chapters
Include authors or editors, title, edition, place of publication, publisher, year, and pages when citing a chapter. Online books may add a URL and access date.
Datasets And Software
Cite the creators, dataset or software name, version, year, repository, and a persistent identifier. If a paper describes the dataset, cite both items when each adds value.
Examples In NLM/ICMJE Style
These patterns show the structure you’ll use in most medical journals that ask for a numbered list.
- Randomized trial: Nguyen T, Patel R, Kim S, et al. Drug X for acute migraine. Neurology. 2023;100(4):255–262. doi:10.1212/WNL.0000000000201234
- Meta-analysis: Silva A, Romero L. Beta-blockers after stroke: a pooled analysis. Stroke. 2021;52(9):e250–e259. doi:10.1161/STROKEAHA.121.034567
- Guideline: World Health Organization. Hypertension guideline 2023. Geneva: WHO; 2023. Available from: https://www.who.int/publications
- Dataset: Chen Y, Gupta P. Cardiac MRI segmentation masks, v2. Dryad; 2022. doi:10.5061/dryad.ab12c34
Common Mistakes And Fast Fixes
Mismatch between in-text numbers and the tail list is the top problem. Renumbering during edits can scramble order, so lock the citation manager before copy edits. Duplicate entries also creep in when two records point to the same DOI. Unstandardized journal names slow checks; use the official NLM abbreviation. Missing page ranges or e-locators trigger queries. Titles in sentence case keep the list tidy and readable.
When A Source Lacks A DOI
Use the publisher URL or a permanent repository link. Add a note only if the journal requests it. Many editors accept stable URLs for guidelines, tools, and datasets.
Secondary Citations And Personal Communications
Cite the original study whenever you can access it. If you must point to data quoted in another paper, mention the secondary source in the text and list only the item you read in the references. Personal communications usually stay in the text and out of the reference list unless the journal asks otherwise. Get permission from the communicator when needed.
Tools That Keep You Consistent
Reference managers speed the job but only when your metadata is clean. Zotero and EndNote both support NLM and AMA styles. Import from PubMed using the official identifiers to reduce typos. Before submission, refresh the style file, then scan every entry by eye. No tool replaces a human check.
Edge Cases In Numbering
When you delete a cited sentence, the chain of numbers can break. Use your manager’s renumber tool only after all edits are done. If a figure caption needs a source, treat it like normal text and use the next number. When a table includes multiple studies, add a range next to the table title or add separate notes per row so readers can track each claim.
Quotations And Page Marks
Short quotes rarely appear in clinical reviews, but they do show up in methods sections and historical notes. If your journal wants page marks for quotes, add them in the text, not in the tail list. Place the page after the citation number using the journal’s format, such as “Superscript number, p. 123.”
Supplementary Files And Appendices
If you host a search strategy, screening log, or extra tables, cite those files like any other item. Give them a title, year, and a durable link in your repository. Match the item label in your text to the label in your deposit so readers can verify the material.
Handling Retractions And Updates
Screen every record in your list for retraction or major correction. PubMed flags these events. If a key trial was retracted, do not cite it to support a claim. If context demands that you mention it, state that it was retracted and cite the retraction notice as well.
Non-English Sources
Keep the original title and add an English translation in brackets only if the journal allows it. Include the language tag at the end if required. If an English abstract exists, you may still cite the original paper when the data come from that version.
Citing Figures, Tables, And Images
If you adapt a figure, cite the original and add a permission note in the caption when licenses require it. For reused tables, check the publisher’s policy. Many journals allow reuse under a license with proper credit. For images from repositories, include the license and link to the source record.
Formatting Details That Save Time
Use non-breaking spaces between volume and issue marks where your CMS supports it. Replace hyphens with en dashes in number ranges. Keep one space after periods. Abbreviate months to the journal’s style. Consistency speeds copy edits and reduces queries.
What To Include For Each Source Type
Use this checklist while building the tail list. Fill every field you can. Leave blanks only when the data does not exist.
| Source Type | Fields To Capture | Extra Notes |
|---|---|---|
| Journal article | Authors; title; journal abbreviation; year; volume(issue); pages or e-locator; DOI | Use sentence case for titles |
| Guideline/report | Organization or authors; title; publisher; year; report number; DOI or URL; access date if needed | Name the group as author when no persons listed |
| Dataset/software | Creators; title; version; year; repository; persistent ID | Cite paper too if it adds context |
Method Notes: How This Guide Was Built
This advice follows the current NLM guidance used in ICMJE journals and aligns with AMA practice for numbered citations. It also folds in common editor requests from author instructions across large clinical titles. See the ICMJE recommendations and Citing Medicine for primary details.
A Simple Workflow From Draft To Submission
- Build a living outline with section heads and numbered placeholders for claims that need sources.
- Pull records from PubMed with the Send to → Citation manager option so metadata fields are clean.
- Insert numbers as you write each claim. Avoid “source to add later” notes.
- After peer input, use your manager to refresh the style and compress ranges like 12–16.
- Compare your list against the text by reading aloud and pausing at each number to confirm a match.
- Validate DOIs with a quick open in a new tab. Fix dead links and missing e-locators.
- Export a plain reference list and a RIS file. Some journals ask for both.
Final Checks Before You Submit
Read every sentence and ask, “Does a reader see the source the moment a claim appears?” If the answer is yes, your signals and numbering are doing their job. Then scan the tail list for missing DOIs, wrong journal abbreviations, or broken ranges. Export a clean copy from your manager, remove field codes if the journal asks, and you are ready to send.