[1] YALE UNIV,SCH MED,NEW HAVEN,CT 06520
[2] SIDNEY FARBER CANC INST,BOSTON,MA
[3] HARVARD UNIV,SCH MED,DEPT PEDIAT,BOSTON,MA 02115
[4] BOSTON HOSP WOMEN,DEPT OBSTET GYNECOL,BOSTON,MA 02115
[5] YALE NEW HAVEN HOSP,DEPT OBSTET GYNECOL,NEW HAVEN,CT
[6] YALE NEW HAVEN HOSP,DEPT MED,NEW HAVEN,CT
[7] YALE NEW HAVEN HOSP,DEPT HUMAN GENET,NEW HAVEN,CT