[1] UNIV COLORADO,HLTH SCI CTR,DIV MED ONCOL,DENVER,CO 80262
[2] UNIV COLORADO,HLTH SCI CTR,DEPT BIOCHEM BIOPHYS & GENET,DENVER,CO 80262
[3] UNIV MICHIGAN,SCH MED,DEPT HUMAN GENET,ANN ARBOR,MI 48109
[4] NORTHWESTERN UNIV,DEPT BIOCHEM MOLEC BIOL & CELL BIOL,EVANSTON,IL 60201