Media type: E-Article Title: Extended Use of Transdermal Norelgestromin/Ethinyl Estradiol: A Randomized Trial Contributor: Stewart, Felicia H.; Kaunitz, Andrew M.; LaGuardia, Katherine D.; Karvois, Debra L.; Fisher, Alan C.; Friedman, Andrew J. Published: Ovid Technologies (Wolters Kluwer Health), 2005 Published in: Obstetrics & Gynecology, 105 (2005) 6, Seite 1389-1396 Language: English DOI: 10.1097/01.aog.0000160430.61799.f6 ISSN: 0029-7844 Keywords: Obstetrics and Gynecology Origination: Footnote: