See this example properly formatted in the QUT Cite tool.
Vancouver is a numbered referencing style commonly used in the health and science disciplines, and consists of two elements - the in-text citation and the reference list. Both are required for your referencing to be correct. The in-text citation is indicated by the use of a number, and a sequentially numbered reference list at the end of your document provides the full details of the corresponding in-text reference.
Vancouver is maintained by the U.S. National Library of Medicine and is based upon Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers (2nd edition).It is from this that we have developed the templates and examples in QUT cite|write. You can consult this source directly for more detailed information and examples.