[1] UNIV ALABAMA,DEPT PHYS,BIRMINGHAM,AL 35294
[2] UNIV ALABAMA,DEPT CHEM,BIRMINGHAM,AL 35294
[3] UNIV ALABAMA,DEPT BIOCHEM,BIRMINGHAM,AL 35294
[4] UNIV ALABAMA,CTR COMPREHENS CANC,BIRMINGHAM,AL 35294
[5] UNIV ILLINOIS,MED CTR,DEPT PHYSIOL & BIOPHYS,CHICAGO,IL 60680