1. From the Departments of Medicine (L.L.G., F.A., J.-A.H.) and Urology (D.N.H.), Centre Hospitalier Universitaire Vaudois, University of Lausanne, Lausanne, Switzerland; Physiologisches Institut, Universität Regensburg, Regensburg, Germany (C.W.); IUMRS CNRS 7241, INSERM U1050, Collège de France, Paris, France (S.G.); and Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland (P.M.).