[1] BRIGHAM & WOMENS HOSP, DIV CARDIOVASC, BOSTON, MA 02115 USA
[2] HARVARD UNIV, SCH MED,DEPT MED, BOSTON, MA 02115 USA
[3] HARVARD UNIV, SCH MED,DEPT RADIOL, BOSTON, MA 02115 USA
[4] CUNY MT SINAI SCH MED, DIV CARDIOL, NEW YORK, NY 10029 USA
[5] MT SINAI HOSP & MED CTR, NEW YORK, NY 10029 USA