Academic Writing

Vancouver Referencing for Medical Theses and Papers

Use numbered Vancouver-style references consistently and verify every source.

The basic principle

Vancouver-style referencing is commonly associated with numbered citations in biomedical writing. Sources are numbered in the sequence of first mention and typically retain that number when cited again. The reference list follows citation order rather than alphabetical order. Journals and universities may prescribe their own variations, so verify their instructions first.

Journal article format

A typical reference includes author names, article title, abbreviated journal title, publication year, volume, issue where required, page range or e-locator, and DOI where requested by the publisher.

Illustrative structural template:

Author AA, Author BB. Article title. Abbreviated Journal Title. Year;Volume(Issue):Pages. doi:DOI

This is a format template, not an actual citation. Never include invented journal details or DOIs in a submitted thesis.

A reliable referencing workflow

Collect article metadata from authoritative source records or the original publisher.
Confirm authors, article title, journal title, year, volume, pages and DOI.
Follow the NLM abbreviated journal title where required.
Insert citations into the text in the order prescribed by your institution.
Re-check numbering after moving or deleting paragraphs.
Reconcile the reference list against every in-text citation.

Common errors

A journal abbreviation that does not match NLM, duplicated references with different numbers, missing online-only article identifiers, and references included merely because an AI system suggested them. A reference manager helps, but imported metadata still requires checking.

The authoritative examples are available from the U.S. National Library of Medicine and the ICMJE recommendations.

ResearchTry Literature Search can help researchers organize identified articles and prepare references for manual verification.

Frequently asked questions

Do all journals use exactly the same punctuation?

No. NLM/ICMJE style is a foundation; always check the destination journal or university’s author instructions.

How do I verify a citation?

Check its bibliographic fields against the publisher, DOI, PubMed or another authoritative bibliographic source.