[1] NCI,BETHESDA,MD 20205
[2] MAYO CLIN & MAYO FDN,ROCHESTER,MN 55905
[3] NEW ENGLAND DEACONESS HOSP,BOSTON,MA 02215
[4] NEW YORK MED COLL,VALHALLA,NY 10595
[5] GRANT HOSP,COLUMBUS,OH
[6] CENT OHIO COLON & RECTAL CTR,COLUMBUS,OH
[7] CROSS CANC INST,EDMONTON,ALBERTA,CANADA
[8] LAHEY CLIN,BURLINGTON,MA
[9] ST MARGARETS HOSP,PITTSBURGH,PA
[10] UNIV VERMONT,BURLINGTON,VT 05405
[11] UNIV IOWA,IOWA CITY,IA 52242
[12] UNIV ALABAMA,UNIVERSITY,AL 35486
[13] MEM SLOAN KETTERING CANC CTR,NEW YORK,NY 10021
[14] UNIV PITTSBURGH,PITTSBURGH,PA 15260
[15] MERCY HOSP,PITTSBURGH,PA 15219
[16] UNIV CONNECTICUT,FARMINGTON,CT 06032
[17] UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024
[18] HAMMERSMITH HOSP,LONDON W12 0HS,ENGLAND
[19] ROYAL FREE HOSP,LONDON,ENGLAND
[20] UNIV LONDON KINGS COLL HOSP,LONDON SE5 8RX,ENGLAND
[21] JOHN RADCLIFFE HOSP,OXFORD OX3 9DU,ENGLAND
[22] NYU,NEW YORK,NY 10003
[23] UNIV HEIDELBERG KLINIKUM,HEIDELBERG,FED REP GER