Articles in Online Journals
The preferred citation style for an electronic journal uses a DOI (digital object identifier). The DOI provides a persistent link to the electronic item and is considered to be more stable than a URL. If the DOI is not given on the full text article or in the citation, use a DOI lookup tool to locate it (http://www.crossref.org/guestquery/) or use the format for an article without a DOI.
Citing sources within text
Cite references that are retrievable in text, tables, and figures in consecutive order using superscript Arabic numbers. Use commas to separate multiple citation numbers in text. Corresponding references should be listed in numeric order at the end of the document. Unpublished works and personal communications should be cited parenthetically (and not on the reference list). Superscript numbers are placed outside periods and commas, and inside colons and semicolons.
When citing the same source more than once, give the number of the original reference, then include the page number (in parentheses) where the information was found. See pages 41-44 of the AMA Manual of Style for more information.
Examples:
Article from online journals with DOI available
Note that when using a DOI, no access date or URL are used.
Author. Title of article. Name of Journal. Year;vol(issue):pages. doi:xx.xxxx.
Florez HR, Martinez RL. Outdoor exercise reduces the risk of hypovitaminosis D in the obese. J Steroid Biochem Mol Bio.
2007;103(3-5):679-681. doi:10.1016 /j.jsbmb.2006.12.032.
Article from online journals without DOI available.
Note: The accessed date will often be the only date available.
Author. Title of article. Name of Journal. Year;vol(issue);pages. URL. Published date. Updated date. Accessed date.
Hay PJ. Understanding bulimia. Aust Fam Physician. 2007;36(9):708-712. http://www.racgp.org.au/afp/200709/18554. Accessed October 11, 2009.
Articles in journals
AMA style requires the use of standard abbreviations for all references, when applicable. Abbreviations for many common medical journals can be found in the AMA Manual of Style (pp.473-479). Additional abbreviations can be searched in the PubMed Journal Database (http://www.ncbi.nlm.nih.gov/journals?itool=sidebar).
One author
(do not include issue number or month unless volumes are not consecutively numbered)
