1. From the Department of Obstetrics and Gynecology (F.B., R.K.D.), Clinic for Endocrinology; Center for Integrative Human Physiology (R.K.D.); and Institute of Clinical Pathology (B.O.), University Hospital Zurich, Switzerland; Center for Clinical Pharmacology (E.K.J., D.G.G., R.K.D.) and Departments of Medicine (E.K.J., D.G.G., R.K.D.) and Pharmacology (E.K.J.), University of Pittsburgh School of Medicine, Pa; and Preclinical Pharma Research 68/209 (J.F.), F. Hoffmann La-Roche, Basel, Switzerland.