[1] SUNY Downstate, Dept Med, Brooklyn, NY 11203 USA
[2] Brooklyn VA Ctr, Dept Cardiol, Brooklyn, NY 11201 USA
[3] Hartford Hosp, Henry Low Heart Ctr, Hartford, CT 06102 USA
[4] NYU, Sch Med, New York, NY USA
[5] Windsor Sch Med, St Kitts, St Kitts & Nevi