1. From the Department of Cardiology and Angiology (S.W., T. Breyer, A.D., R.W., T. Burkard, S.S.-S., U.D., D.R., C.J.F.H.), Medizinische Universitätsklinik, and the Department of Cardiac Surgery (F.B.), University of Freiburg, and the Max-Planck-Institute of Immunobiology (E.-M.F.), Freiburg, Germany.