1. From the Division of Cardiology (C.-M.Y., J.W.-H.F., Q.Z., Y.-S.C., S.-L.K.), Department of Medicine and Therapeutics, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, and the Department of Cardiology (G.B.B., M.J.S., E.E.v.d.W., J.J.B.), Leiden University Medical Center, Leiden, the Netherlands.