[1] Christ Hosp, Heart & Vasc Ctr, Lindner Res Ctr, Cincinnati, OH 45219 USA
[2] Massachusetts Gen Hosp, Div Cardiol, Boston, MA 02114 USA
[3] Harvard Clin Res Inst, Boston, MA USA
[4] Harvard Clin Res Inst, Program Dev, Boston, MA USA
[5] Beth Israel Deaconess Med Ctr, Boston, MA 02215 USA
[6] Harvard Univ, Sch Med, Boston, MA USA
[7] Hop Bichat Claude Bernard, AP HP, Dept Cardiol, F-75877 Paris, France
[8] Univ Hosp Leicester Trust, Univ Hosp Leicester, Leicester Cardiovasc Biomed Res Unit, Glenfield Hosp,Natl Inst Hlth Res, Leicester, Leics, England
[9] Inst Cardiol Montreal, Montreal, PQ, Canada
[10] Univ Hosp Bern, CH-3010 Bern, Switzerland
[11] Lenox Hill Hosp, New York, NY 10021 USA
[12] Piedmont Heart Inst, Atlanta, GA USA
[13] Stanford Univ, Stanford, CA 94305 USA
[14] Univ Hosp Case Med Ctr, Harrington Heart & Vasc Inst, Cleveland, OH USA
[15] Heart Inst N Stancioiu, Cluj Napoca, Romania
[16] Jan Pawel II Hosp Krakow, Krakow, Poland
[17] Brigham & Womens Hosp, Div Cardiovasc Med, Boston, MA 02115 USA