[1] Department of Cardiovascular Surgery, Heart Hospital Baylor Plano, Baylor Health Care System, Plano, TX
[2] Department of Cardiology, Mayo Clinic, Rochester, MN
[3] Division of Cardiology, St. Paul's Hospital, University of British Columbia, Vancouver, BC
[4] Service de Cardiologie, Hopital Charles-Nicolle, Universite de Rouen, Rouen
[5] Columbia University Medical Center, New York-Presbyterian Hospital, New York, NY
[6] Cardiovascular Research Foundation, New York, NY