1. From the Cardiology Center (V.V., P.U., J.B., M. Redard, M.C., M.-C.W., W.R.) and Division of Radiation Oncology (Y.P., M. Rouzaud, P.N., E.G., J.M.K.), University Hospital, Geneva, Switzerland; and Schneider (Europe) AG (M.S.), Bülach, Switzerland.