1. Minneapolis Heart Institute, Abbott Northwestern Hospital, MN (M.M., I.X., M.N.B., E.S.B.).
2. Department of Cardiovascular Medicine, Hennepin Healthcare, Minneapolis, MN (M.M.).
3. Department of Cardiology, St. George Hospital University Medical Center, Beirut, Lebanon (N.A.R.).
4. Department of Cardiology, Columbia University, New York, NY (D.K.).
5. Division of Interventional Cardiology, McGill University Health Centre, Montreal, Canada (S.R.).
6. Department of Cardiology, Sayama Hospital, Saitama Sekishinkai Hospital, Japan (M.Y.).