[1] BOSTON UNIV, SCH MED, DEPT MED, BOSTON, MA 02118 USA
[2] BOSTON UNIV, SCH MED, DEPT PHARMACOL, BOSTON, MA 02118 USA
[3] BOSTON UNIV, SCH MED, INST CARDIOVASC, BOSTON, MA 02118 USA
[4] BOSTON CITY HOSP, THORNDIKE MEM LAB, BOSTON, MA 02118 USA
[5] BOSTON CITY HOSP, DEPT CARDIOL, BOSTON, MA 02118 USA
[6] BOSTON CITY HOSP, DEPT NUCL MED, BOSTON, MA 02118 USA