1. NewYork-Presbyterian Hospital/Columbia University Irving Medical Center (M.V.M., B.R., Z.A.A., M.P., A.M., M.B.L., A.J.K.).
2. Cardiovascular Research Foundation, New York, NY (M.V.M., B.R., Z.A.A., M.P., B.S., Z.Z., R.M., A.M., M.B.L., A.J.K., G.W.S.).
3. Sahlgrenska University Hospital, Gothenburg, Sweden (B.R.).
4. St. Francis Hospital, Roslyn, NY (Z.A.A.).
5. Maasstad Zienkenhuis, Rotterdam, the Netherlands (P.C.S.).
6. Thoraxcentrum Twente, Medisch Spectrum Twente, Enschede, the Netherlands (C.v.B.).
7. The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY (R.M., G.W.S.).
8. Imperial College of Science, Technology and Medicine, London, United Kingdom (P.W.S.).
9. Department of Cardiology, NUIG, National University of Ireland, Galway, Ireland (P.W.S.).