Each new reference introduced in the text is numbered sequentially. The reference number appears in parentheses immediately following related text. The reference list is numbered to correspond with citations in text. I ndex Medicus abbreviations are used for periodical titles. If a standard abbreviation is not available, cite the full title.
Some examples follow.
J Nutr Educ . BOOK Glanz K, Lewis FM, Rimer BK, eds. How individuals, environments, and health behavior interact. Authors are responsible for the accuracy of references. Avoid secondary sources.