1. From Netherlands Heart Institute, Utrecht (V.J.v.d.B.); Department of Cardiology, Noordwest Ziekenhuisgroep, Alkmaar, the Netherlands (V.J.v.d.B., V.A.W.M.U., F.S., J.H.C.); and Department of Cardiology, Erasmus Medical Center, Rotterdam, the Netherlands (V.J.v.d.B., M.d.M., K.M.A., I.K., E.B.).