1. Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands (E.M.J.P.M., L.J.M.E.v.d.D., E.A.H.L., C.P.T., P.K., N.M.S.d.G.)
2. Department of Cardiothoracic Surgery, Erasmus Medical Center, Rotterdam, The Netherlands (E.M.J.P.M., C.K., A.J.J.C.B.)