59,510
Participants
Start Date
November 30, 2000
Study Completion Date
December 31, 2005
Drospirenone
Levonorgestrel
Other progestin containing oral contraceptive
Center for Epidemiology and Health Research, Berlin
Bayer Healthcare Pharmaceuticals, Inc./Bayer Schering Pharma
INDUSTRY
Center for Epidemiology and Health Research, Germany
OTHER