[1] YALE UNIV,SCH MED,DEPT GENET,NEW HAVEN,CT 06510
[2] UNIV IOWA,IOWA CITY,IA
[3] WASHINGTON UNIV,SCH MED,DEPT GENET,ST LOUIS,MO 63110
[4] UNIV OXFORD,DEPT BIOCHEM,OXFORD OX1 3QU,ENGLAND
[5] OREGON HLTH SCI UNIV,DEPT BIOCHEM,PORTLAND,OR 97201
[6] NCI,BIOCHEM LAB,BETHESDA,MD 20892
[7] NCI,BIOCHEM LAB,BETHESDA,MD 20892
[8] UNIV ROME,DEPT BIOL,ROME,ITALY
[9] IMPERIAL CANC RES FUND,CLARE HALL LABS,LONDON,HERTS,ENGLAND
[10] MARSHFIELD MED RES FDN,CTR MED GENET,MARSHFIELD,WI 54449
[11] INST PASTEUR,PARIS,FRANCE
[12] UNIV UTAH,HOWARD HUGHES MED INST,ECCLES INST HUMAN GENET,SALT LAKE CITY,UT