1. From the Departments of Cardiology (B.B., Z.L., S.D., C.D., J.S., H.G., L.A., G.S., M.B.B., J.L., T.P., S.W., S.S., C.G.) and Nuclear Medicine (F.C., A.R.), Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, CH-3010 Bern, Switzerland.