1. From the Departments of Medicine III (K.A.M., M.D., M.S., S.H., A.K., F.E., K.D., G.A.B.), Clinical Pathology (H.R., N.K., J.K.), and Clinical Pharmacology (S.S., C.F., B.J.) and the Center of Virology (E.P.-S., H.V.), Medical University of Vienna, Vienna; the Clinic for Transplantation Immunology and Nephrology, University Hospital Basel, Basel, Switzerland (M.D.); the Department of Nephrology, Charité Universitätsmedizin Berlin, Berlin (E.S., S.K., A.A., B.O., F.H., K.B.), MorphoSys, Planegg (R.B....