1. Department of Pharmacology and Chemical Biology (J.-P.V., T.N.F.), University of Pittsburgh, Pittsburgh, Pennsylvania 15213
2. Endocrine Unit (J.-P.V.), Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
3. The Institute of Pharmacology and Toxicology (M.B., V.O.N., M.J.L., C.H.), Würzburg, Germany
4. Department of Pharmacology and Toxicology (N.L.), Medical College of Georgia, Augusta, Georgia 30809
5. Rudolf Virchow Center (S.E., M.J.L.), Deutsche Forschungsgemeinschaft-Research Center for Experimental Biomedicine, University of Würzburg D-97078, Würzburg, Germany