Cite references, illustrations, and tables in numeric order in the text. Avoid abbreviations when possible. Consult the American Medical Association Manual of Style, 8th edition, for recommended abbreviations. Define abbreviations at first appearance, and avoid their use in the title and abstract. Give all measurements and weights in standard metric units.
Type footnotes at the bottom of the manuscript page on which they are cited.
Type acknowledgments, including grant and subsidy information or technical assistance, at the end of the text before the references. References Identify references in the text using arabic numerals in brackets on the line. Do not cite personal communications, manuscripts in preparation, and other unpublished data. Type references double-spaced on a separate sheet. Number consecutively in the order in which they are mentioned in the text.