• International Committee of Medical Journal Editors (ICMJE). Uniform requirements for manuscripts submitted to biomedical journals: writing and editing for biomedical publication [Internet]. ICMJE; 2018 [updated 2018 Dec; cited 2005 Jun 28]. Available from: http://www.icmje.org/recommendations/.
• US. National Library of Medicine. Samples of formatted references for authors of journal articles [Internet]. NLM; 2018 [updated 2018 Apr 26; cited 2019 Jun 28]. Available from: www.nlm.nih.gov/bsd/uniform_requirements.html.
• Patrias K. Citing medicine: the NLM style guide for authors, editors, and publishers [e-book], 2nd ed. NLM; 2007 [updated 2015 Oct 2; cited 2019 Jun 29]. Available from: www.ncbi.nlm.nih.gov/books/NBK7256/.
• A small group of editors of general medical journals met informally in Vancouver, British Columbia, in 1978 to establish guidelines for the format of manuscripts submitted to their journals.
• This group became known as the Vancouver Group. Its requirements for manuscripts, including formats for citations and references were first published in 1979 by the National Library of Medicine (NLM).
• The Vancouver Group expanded and evolved into the International Committee of Medical Journal Editors (ICMJE), which meets annually.