[1] BOSTON UNIV, BOSTON CITY HOSP, SCH MED, DEPT MED, CARDIOL SECT, BOSTON, MA 02118 USA
[2] BOSTON UNIV, BOSTON CITY HOSP,SCH MED,DEPT MED,ARTHRITIS SECT, BOSTON, MA 02118 USA
[3] BOSTON UNIV, BOSTON CITY HOSP, SCH MED, DEPT RADIOL, BOSTON, MA 02118 USA
[4] BOSTON UNIV, BOSTON CITY HOSP, SCH MED, THORNDIKE MEM LAB, BOSTON, MA 02118 USA