[1] FOX CHASE CANC CTR,NMR DEPT,PHILADELPHIA,PA 19111
[2] WAYNE STATE UNIV,DEPT MED,DETROIT,MI 48202
[3] ST GEORGE HOSP,DIV BIOCHEM,LONDON,ENGLAND
[4] NCI,PATHOL LAB,ROCKVILLE,MD 20852
[5] NCI,DIAGNOST IMAGING RES BRANCH,ROCKVILLE,MD
[6] UNIV CALIF SAN FRANCISCO,DEPT RADIOL,SAN FRANCISCO,CA 94143
[7] BAYLOR COLL MED,DEPT MED,HOUSTON,TX 77030
[8] HUNTINGTON MED RES INST,PASADENA,CA