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Original Research
Hormone withdrawal-associated symptoms with ethinylestradiol 20 μg/drospirenone 3 mg (24/4 regimen) versus ethinylestradiol 20 μg/desogestrel 150 μg (21/7 regimen)
Johannes Bitzer1 Department of Obstetrics and Gynecology, University Hospital of Basel, Basel, SwitzerlandCorrespondence[email protected]
, Maria Jesusa Banal-Silao2 University of the Philippines College of Medicine, Manila, Philippines
, Hans-Joachim Ahrendt3 Praxis für Frauenheilkunde, Klinische Forschung und Weiterbildung (Clinical Research and Further Education), Magdeburg, Germany
, Jaime Restrepo4 Centro de Investigación Clínica, Clinica Medellin Poblado, Medellin, Colombia
, Marion Hardtke5 Global Clinical Development Operations, Bayer Pharma AG, Berlin, Germany
, Ulrike Wissinger-Graefenhahn6 Global Medical Affairs Women’s Healthcare, Bayer Pharma AG, Berlin, Germany
& Dietmar Trummer7 Clinical Statistics Europe, Bayer Pharma AG, Berlin, Germany
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Pages 501-509
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Published online: 18 May 2015
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