Vancouver Format: Complete Citation Guide (2026)
The Vancouver format is a numeric citation style widely used in medicine, health sciences, and related fields. It assigns consecutive numbers to sources as they appear in the text and lists full references in numerical order at the end.
This guide explains Vancouver rules, provides step-by-step examples for common source types (books, journal articles, websites, and several others), and offers practical tips and tools you can use immediately—including Rephrasely’s free citation generator to automate formatting.
Who uses Vancouver format?
Vancouver is the preferred style of many medical journals, clinical guidelines, and institutions that follow the International Committee of Medical Journal Editors (ICMJE) recommendations. It’s also common in nursing, pharmacy, and public health publications.
Why use Vancouver?
Vancouver’s numeric in-text citations keep manuscript text concise, and the reference list provides full details. This system reduces interruptions in dense scientific prose and streamlines reference management for peer-reviewed publications.
General Rules
- Number citations sequentially in the order they appear in the text (1, 2, 3, ...).
- Use Arabic numerals. Parentheses
(1)or superscripts1are both accepted; follow the journal’s preference. - The reference list is numbered and ordered by citation sequence, not alphabetically.
- Use the author(s)’ last names and initials (no full first names). For multiple authors, list up to six before using
et al.Some journals allow listing all authors regardless—check instructions for authors. - Use abbreviated journal titles as in Index Medicus/Medline. Include DOI with the prefix
https://doi.org/when available. - Omit periods between initials (some variations exist). Be consistent within a document.
Quick actionable checklist
- Number citations in-text sequentially as you write.
- Collect full bibliographic details (authors, title, journal, year, volume, issue, page range, DOI/URL, access date for webpages).
- Use Rephrasely’s free citation generator (https://rephrasely.com/citation) to produce correctly formatted Vancouver references quickly.
How to Cite by Source Type
Below are step-by-step formats and examples for common sources. Use the examples as templates by replacing author names, titles, years, and other fields.
1. Journal Article
Format:
Author(s). Article title. Abbreviated Journal Title. Year;Volume(Issue):Page range. doi
Example:
Smith J, Brown P, Lee K. Early diagnosis of pulmonary embolism. J Clin Respir. 2023;18(4):234-241. https://doi.org/10.1000/jcr.2023.4567
Notes: Include issue number only if each issue starts page numbering at 1. Always include DOI when present and format it as a URL.
2. Book
Format for whole book:
Author(s). Book title. Edition. Place of publication: Publisher; Year.
Example:
Miller A, Thompson R. Clinical Pharmacology. 3rd ed. New York (NY): Medical Press; 2021.
Chapter in edited book:
Author(s) of chapter. Chapter title. In: Editor(s), editors. Book title. Edition. Place: Publisher; Year. p. page-range.
Example:
Green S. Antimicrobial stewardship. In: Patel D, Nguyen H, editors. Essentials of Infectious Disease. 2nd ed. London: HealthPub; 2022. p. 120-134.
3. Website
Format:
Author(s) (if available). Title of page/document. Site name. Year [cited Year Month Day]. Available from: URL
Example:
World Health Organization. WHO guideline: hand hygiene in health care. WHO. 2022 [cited 2024 May 10]. Available from: https://www.who.int/publications/hand-hygiene
Action: Always include an access date for web resources that may change or be removed.
4. Conference Paper / Proceedings
Format:
Author(s). Title of paper. In: Editor(s), editors. Title of Conference; Year Month Day; Place. Place of publication: Publisher; Year. p. page-range.
Example:
Nguyen T, Ross M. Telehealth adoption in rural clinics. In: Smith B, editor. Proceedings of the National Telemedicine Conference; 2024 Sep 12-14; Vancouver, BC. Boston: TeleHealth Press; 2024. p. 45-50.
5. Thesis / Dissertation
Format:
Author. Title [thesis type]. Place of institution: Institution; Year.
Example:
Rodriguez L. Genetic markers of hypertension [dissertation]. Toronto: University of Toronto; 2020.
6. Government / Technical Report
Format:
Authoring organization. Title. Place: Publisher; Year. Report number (if applicable).
Example:
Canadian Public Health Agency. National immunization coverage report 2023. Ottawa: PHAC; 2024. Report No.: PHAC-2024-01.
In-Text Citations
Vancouver uses numbers, either in parentheses or as superscripts. Choose a style and use it consistently. Numbers refer to the full reference list entry.
Examples:
- Parentheses style: The procedure is safe in adults (1,3).
- Superscript style: The procedure is safe in adults1,3.
When citing several sources at once, list numbers in ascending order separated by commas or hyphens for ranges:
(1, 4, 7-9)
Actionable tip: Insert citation numbers while drafting, not after, to maintain correct ordering. If you add a new citation earlier in the text, renumber subsequent citations or use a reference manager to update numbers automatically.
Reference List
Rules:
- Begin the reference list on a new page titled “References” (or per journal requirement).
- Number entries in the exact order the sources are first cited in the text.
- Use single spacing with a blank line between references for readability.
- Use the abbreviated journal title and include DOI as a URL where available.
Example reference list (first three entries):
1. Smith J, Brown P, Lee K. Early diagnosis of pulmonary embolism. J Clin Respir. 2023;18(4):234-241. https://doi.org/10.1000/jcr.2023.4567
2. Miller A, Thompson R. Clinical Pharmacology. 3rd ed. New York (NY): Medical Press; 2021.
3. World Health Organization. WHO guideline: hand hygiene in health care. WHO. 2022 [cited 2024 May 10]. Available from: https://www.who.int/publications/hand-hygiene
Action: Use a consistent abbreviation source (e.g., National Library of Medicine) when shortening journal titles.
Common Mistakes to Avoid
- Incorrect author format: Vancouver requires last names followed by initials (e.g.,
Smith J), not full first names. - Ordering errors: The reference list must follow the order of first appearance, not alphabetical order.
- Missing DOIs or incorrect DOI format: Always use the
https://doi.org/prefix. Do not use old DOI styles likedoi:alone. - Incomplete web citations: Omit access dates or URLs at your own risk. Always include “[cited YEAR MONTH DAY]” for web pages that are not archival.
Practical fix: Run your reference list through a citation checker or generator to catch formatting errors. Rephrasely’s free citation generator (https://rephrasely.com/citation) can format entries to Vancouver automatically. Then verify with the target journal’s author guidelines.
Tools and Workflow Recommendations
For reliable, fast results combine manual checks with automation:
- Collect complete bibliographic info as you research.
- Use an automated generator (e.g., Rephrasely citation generator) to create Vancouver-formatted entries.
- Check for plagiarism and duplicate citations with Rephrasely’s plagiarism checker.
- Draft manuscript sections with Rephrasely’s AI writer (Composer) and then confirm source attributions with the AI detector if needed.
- Translate titles or abstracts using Rephrasely’s translator tool when dealing with non-English sources and include the original language note if required.
Action: Before submission, run a final manual pass: check author name spelling, journal abbreviations, DOIs, and that citation numbers in-text match the reference list order.
Frequently Asked Questions
Do I use parentheses or superscripts for Vancouver in-text citations?
Both are acceptable in Vancouver; however, you must follow your target journal’s preference. Parentheses (1) and superscripts 1 are common—use whichever the journal’s author instructions specify.
How many authors should I list before using et al.?
Common Vancouver practice lists up to six authors; if there are more than six, list the first six followed by et al. Always check the journal’s instructions because some journals request all authors regardless of number.
Can I use Rephrasely’s citation generator for Vancouver formatting?
Yes. Rephrasely’s free citation generator (https://rephrasely.com/citation) produces Vancouver-style entries and helps ensure consistent formatting. Pair it with Rephrasely’s plagiarism checker and AI writer for a smoother authoring workflow.