Vancouver Style is also know as the Uniform Requirements Style.  This style was created in Vancouver, British Columbia in 1978 by a group of editors of medical journals.  This is a numbered style that is very similar to the AMA style.

Examples of difference reference types can be found in National Library of Medicine's Citing Medicine ebook.

A list of examples can also be found on the National Library of Medicine's webpage.

The Vancouver/Uniform Requirement format for submitting a manuscript can be found on the International Committee of Medical Journal Editors (ICMJE) website here.

Author names:

• Author names are listed with a surname followed by first and middle initials (no punctuation)
• Author names are separated by commas
• If there are more than 6 authors, list the first 6 authors, followed by et al.

Journal names

• Journal names are abbreviated according to the National Library of Medicine. To find the correct abbreviation, use the NLM Catalog to search for the journal title. (Search for the title and put [journal] after it in square brackets.
• Journal names are not italicized

Titles

• Only the first words of the title and any proper names are capitalized
• Words after colons are not capitalized

Dates

• Dates are listed in the following format: Year Month (first three letters only) Day - e.g., 2019 Jul 2

Page numbers

• Page number ranges use as little duplication as possible. For example, pages 391-402 would be listed as is, but pages 332-341 would become 332-41 and 332-338 would become 332-8.

Citing online items

• If you retrieved an item from the Internet or a database, write [Internet] after the title of the item
• Include the date you are citing the item in square brackets after the item's publication date
• If an article is retrieved from the Internet or a database, include the URL to aid in retrieval. At the end of the citation, write: Available from: URL. If the URL ends in a slash (/), put a period at the end of the URL; otherwise, end the citation with no period.

Publisher location information

• Major well-known cities (such as New York, Philadelphia, Berlin, etc.) can be listed without state or country information
• If a city is less well-known (or might be confused with another city in a different state, province, or country), include the state or province abbreviation or the country in parentheses after the city, e.g.: Bethesda (MD)

Journal Article:

Dumoff A. Food and Drug Administration restrictions on drug compounding: needed medications are going to disappear: a call for intervention. Integr Med (Encinitas). 2018;17:22-8. 

Journal Article (more than 6 authors):

Rose ME, Huerbin MB, Melick J, Marion DW, Palmer AM, Schiding JK, et al. Regulation of interstitial excitatory amino acid concentrations after cortical contusion injury. Brain Res. 2002;943:15-22.

Journal Article (organization as author):

Diabetes Prevention Program Research Group. Hypertension, insulin, and proinsulin in participants with impaired glucose tolerance. Hypertension. 2002;40:679-86.

Online Journal Article:

Lalau JD, Arnouts P, Sharif A, De Broe ME. Metformin and other antidiabetic agents in renal failure patients. Kidney Int [Internet]. 2015 [cited 2018 Aug 6];87(2):308-22. Available from: https://www.sciencedirect.com/science/article/pii/S0085253815300429?via%3Dihub

Epub Ahead of Print:

Jackevicius CA, Krumholz HM, Ross JS, Koh M, Chong A, Austin PC, et al. Clinical outcomes with beta-blocker use in patients with recent history of myocardial infarction. Can J Cardiol [Internet]. 2020 Feb 4 [cited 2020 Aug 9]. doi: 10.1016/j.cjca.2020.01.024 [Epub ahead of print]

Book:

Murray PR, Rosenthal KS, Kobayashi GS, Pfaller MA. Medical microbiology. 4th ed. St. Louis (MO): Mosby; 2002.

Book Chapter:

Neuman WL. Social research methods: qualitative and quantitative approaches. 6th ed. Boston: Pearson Education; 2006. Chapter 5, The literature review and ethical concerns; p. 110-48.

Authored Book Chapter:

Meltzer PS, Kallioniemi A, Trent JM. Chromosome alterations in human solid tumors. In: Vogelstein B, Kinzler KW, editors. The genetic basis of human cancer. New York (NY): McGraw-Hill; 2002. p. 93-113.

Conference Proceeding:

Harnden P, Joffe JK, Jones WG, editors. Germ cell tumours V. Proceedings of the 5th Germ Cell Tumour Conference; 2001 Sep 13-15; Leeds, UK. New York (NY): Springer; 2002.

Part of a homepage/Website:

American Medical Association [Internet]. Chicago: The Association; c1995-2002 [updated 2001 Aug 23; cited 2002 Aug 12]. AMA Office of Group Practice Liaison; [about 2 screens]. Available from: http://www.ama-assn.org/ama/pub/category/1736.html