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Original Research

Cycle Control With a 21-Day Compared With a 24-Day Oral Contraceptive Pill

A Randomized Controlled Trial

Kaunitz, Andrew M. MD; Burkman, Ronald T. MD; Fisher, Alan C. DrPH; LaGuardia, Katherine D. MD, MPH

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doi: 10.1097/AOG.0b013e3181beab47
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© 2009 by The American College of Obstetricians and Gynecologists. Published by Wolters Kluwer Health, Inc. All rights reserved.