This is not the most recent version of the article. View current version (1 AUG 2013)
20 µg versus >20 µg estrogen combined oral contraceptives for contraception
Editorial Group: Cochrane Fertility Regulation Group
Published Online: 19 JAN 2011
Assessed as up-to-date: 2 NOV 2010
Copyright © 2011 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.
How to Cite
Gallo MF, Nanda K, Grimes DA, Lopez LM, Schulz KF. 20 µg versus >20 µg estrogen combined oral contraceptives for contraception. Cochrane Database of Systematic Reviews 2011, Issue 1. Art. No.: CD003989. DOI: 10.1002/14651858.CD003989.pub4.
- Publication Status: New search for studies and content updated (no change to conclusions)
- Published Online: 19 JAN 2011
This is not the most recent version of the article. View current version (01 AUG 2013)
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