1. From the Departments of Medicine 3 (G.S.) and Medicine 1 (M.F.N.) and Deutsches Zentrum Immuntherapie (G.S., M.F.N.), Friedrich Alexander University Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany; and the College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom (I.B.M.).