1. From the Department of Cardiology, University of Würzburg (M.L.K., S.K.G.M., W.R.B.) and the Department of Cardiology, Juliusspital Würzburg (M.M.), Würzburg, Germany; and the Department of Biomedical Sciences (A.R.G., R.F.G.), Cornell University, Ithaca, NY.