[1] Mayo Clin, Div Cardiovasc Dis, Rochester, MN USA
[2] Winthrop Univ Hosp, Div Cardiol, Mineola, NY 11501 USA
[3] Brigham & Womens Hosp, Div Cardiovasc, Boston, MA 02115 USA
[4] Univ Penn, Dept Surg, Philadelphia, PA 19104 USA
[5] Lehigh Valley Heart Specialists, Div Cardiol, Allentown, PA USA
[6] Tufts Med Ctr, Cardiol, Boston, MA USA
[7] UCI Med Ctr, Div Cardiol, Orange, CA USA
[8] Lenox Hill Hosp, Heart & Vasc Inst New York, Dept Cardiac & Vasc Serv, New York, NY 10021 USA
[9] Beaumont Heart Ctr Clin, Div Cardiol, Royal Oak, MI USA
[10] UT Southwestern, Pediat Cardiol, Dallas, TX USA
[11] Intervent Cardiol, Louisville Cardiol Grp, Louisville, KY USA