[1] WISCONSIN CLIN CANC CTR,MADISON,WI
[2] UNIV ARIZONA,TUCSON,AZ 85721
[3] PENN STATE UNIV,MILTON S HERSHEY MED CTR,HERSHEY,PA 17033
[4] WORCESTER MEM HOSP,WORCESTER,MA
[5] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093
[6] COLUMBIA PRESBYTERIAN MED CTR,NEW YORK,NY 10032