[1] PENN STATE UNIV,MILTON S HERSHEY MED CTR,DEPT PHYSIOL,HERSHEY,PA 17033
[2] YALE UNIV,SCH MED,DEPT PHARMACOL,NEW HAVEN,CT 06510
[3] UNIV KANSAS,DEPT BIOCHEM,LAWRENCE,KS 66045
[4] PENN STATE UNIV,MILTON S HERSHEY MED CTR,SPECIALIZED CANC RES CTR,HERSHEY,PA 17033