1. Department of Medicine (M.V.S.-P., B.H., P.J.M.), University Hospital, CH-8091 Zurich, Switzerland
2. I. Frauenklinik Innenstadt (B.U.), Klinikum der Universität München, 80337 Munich, Germany
3. Division of Clinical Pharmacology and Toxicology, and Department of Pathology (T.S.), Institute of Clinical Pathology, University Hospital, CH-8091 Zurich, Switzerland