[1] OKLAHOMA MED RES FDN,PROT STUDIES PROGRAM,OKLAHOMA CITY,OK 73104
[2] UNIV OKLAHOMA,HLTH SCI CTR,DEPT PEDIAT,OKLAHOMA CITY,OK 73190
[3] UNIV OKLAHOMA,HLTH SCI CTR,DEPT BIOCHEM,OKLAHOMA CITY,OK 73190
[4] UNIV OKLAHOMA,HLTH SCI CTR,DEPT MOLEC BIOL,OKLAHOMA CITY,OK 73190
[5] UNIV ILLINOIS,COLL MED,DEPT OBSTET & GYNECOL,CHICAGO,IL 60680