1. Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC (M.W.K., S.V.R.).
2. Hôpital de la Tour, Geneva, Switzerland (P.U.).
3. Department of Medicine, Montreal Heart Institute, Québec, Canada (J.-F.T.).
4. Clinical Trials Center, Cardiovascular Research Foundation, New York, NY (T.M., Y.Z.).
5. Générale de Santé, Institut Cardiovasculaire Paris Sud, Massy, France (M.-C.M.).
6. Scripps Clinic, La Jolla, CA (M.J.P.).
7. University of Missouri-Kansas City (D.J.C.).
8. Segeberger Kliniken GmbH, Bad Segeberg, Germany (M.A.-W.).
9. McMaster University and Hamilton Health Sciences, Ontario, Canada (S.R.M.).
10. Department of Cardiology, Groupe Hospitalier Mutualiste de Grenoble, France (B.F.).
11. AnMed Health, Anderson, SC (B.M.).
12. Syntactx, New York, NY (C.D.).
13. Biosensors Clinical Research, Morges, Switzerland (H.-P.S.).
14. Department of Medical Statistics, London School of Hygiene & Tropical Medicine, Keppel Street, United Kingdom (S.P.).
15. Columbia University Medical Center/New York-Presbyterian Hospital (M.B.L.).