Affiliation: | a Department of Obstetrics and Gynecology, Contraceptive Research and Development Program Clinical Research Center, Eastern Virginia Medical School, Norfolk, Virginia b Wayne State University/Hutzel Women's Hospital, Detroit, Michigan c McGill University and Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec, Canada d Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California e Bone Metabolism Section, Creighton University Medical Center, Omaha, Nebraska f King's College School of Medicine at Guy's and St. Thomas' Hospitals, Division of Obstetrics and Gynaecology, London, United Kingdom g Department of Obstetrics and Gynecology, Frederiksberg Hospital, Copenhagen, Denmark h NV Organon, Oss, the Netherlands i Organon International, Roseland, New Jersey |