1. Brigham and Women’s Hospital Heart & Vascular Center, Harvard Medical School, Boston, MA (D.L.B.).
2. Mayo Clinic, Rochester, MN (B.J.G.).
3. French Alliance for Cardiovascular Trials, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Université Paris-Diderot, Institut National de la Santé et de la Recherche Médicale U-1148, Paris, France (G.S.).
4. Royal Brompton Hospital, Imperial College, London, UK (P.G.S.).
5. Department of Medicine, Stanford University, CA (R.A.H.).
6. Swiss Cardiovascular Center, University of Bern, Switzerland (S.W.).