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Intervention Review

20 µg versus >20 µg estrogen combined oral contraceptives for contraception

  1. Maria F Gallo1,*,
  2. Kavita Nanda2,
  3. David A Grimes2,
  4. Laureen M Lopez2,
  5. Kenneth F Schulz3

Editorial Group: Cochrane Fertility Regulation Group

Published Online: 19 JAN 2011

Assessed as up-to-date: 2 NOV 2010

DOI: 10.1002/14651858.CD003989.pub4


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.

Author Information

  1. 1

    Centers for Disease Control and Prevention, Division of Reproductive Health, Atlanta, Georgia, USA

  2. 2

    FHI, Clinical Sciences, Research Triangle Park, North Carolina, USA

  3. 3

    FHI, Quantitative Sciences, Research Triangle Park, North Carolina, USA

*Maria F Gallo, Division of Reproductive Health, Centers for Disease Control and Prevention, 4770 Buford Highway, Mail Stop K-34, Atlanta, Georgia, 30341-3724, USA. mgallo@cdc.gov. fjr4@cdc.gov.

Publication History

  1. Publication Status: New search for studies and content updated (no change to conclusions)
  2. Published Online: 19 JAN 2011

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    E. Anne MacGregor, Contraception and Headache, Headache: The Journal of Head and Face Pain, 2013, 53, 2
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    Karla Maguire, Carolyn Westhoff, The state of hormonal contraception today: established and emerging noncontraceptive health benefits, American Journal of Obstetrics and Gynecology, 2011, 205, 4, S4

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