Parentheses and Brackets - AMA Manual of Style

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Parentheses and Brackets 


Cheryl Iverson

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PRINTED FROM AMA MANUAL OF STYLE ONLINE ( © American Medical Association, 2009. All Rights Reserved. Under the terms of the license agreement, an individual user may print out a PDF of a single chapter of a title in AMA Manual of Style Online for personal use (for details see Privacy Policy). date: 29 November 2015

Parentheses and brackets are internal punctuation marks used to set off material that is nonrestrictive or, as in the case of mathematical and chemical expressions, to alert the reader to the special functions occurring within. Use parentheses to indicate supplementary explanations, identification, direction to the reader, or translation. (See also , Dashes, and , Brackets.)A known volume of fluid (100 mL) was injected. The differences were not significant (P > .05). One of us (B.O.G.) saw the patient in 2006. Asymmetry of the upper part of the rib cage (patient 5) and pseudarthrosis of the first and second ribs (patient 8)

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