1. From the University Clinic, University of Würzburg, and Rudolf Virchow Center, DFG Research Center for Experimental Biomedicine, Würzburg (I.H., I.P., B.N.); CSL-Behring GmbH, Marburg (S.S., G.D.); Department of Neurology, University Clinic, Würzburg (C.K., G.S.); and Wehracker 13, Marburg/Michelbach (U.K.), Germany.