1. Department of Obstetrics and Gynecology, Clinic for Endocrinology, University Hospital Zurich (R.K.D., B.I.), 8091-CH Zurich, Switzerland
2. Center for Clinical Pharmacology (R.K.D., E.K.J., D.G.G., L.C.Z., B.I.), Pittsburgh, Pennsylvania 15213
3. Departments of Medicine (R.K.D., E.K.J., D.G.G., L.C.Z., B.I.), Pittsburgh, Pennsylvania 15213
4. Pharmacology (E.K.J., L.C.Z.), University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15213