[1] TEMPLE UNIV,HLTH SCI CTR,SCH MED,DEPT MED,PHILADELPHIA,PA 19140
[2] TEMPLE UNIV,HLTH SCI CTR,SCH MED,DEPT PHYSIOL,PHILADELPHIA,PA 19140
[3] TEMPLE UNIV,HLTH SCI CTR,SCH MED,CTR THROMBOSIS RES,PHILADELPHIA,PA 19140
[4] MERCK SHARP & DOHME RES LABS,DEPT IMMUNOL,RAHWAY,NJ 07065