[1] UNIV CALIF SAN FRANCISCO, DEPT RADIOL, CONTRAST MEDIA LAB, SAN FRANCISCO, CA 94143 USA
[2] UNIV MUNSTER, DEPT RADIOL, W-4400 MUNSTER, GERMANY
[3] EMORY UNIV, SCH MED, ATLANTA, GA 30322 USA
[4] UNIV CALIF SAN DIEGO, SCH MED, DEPT RADIOL, LA JOLLA, CA 92093 USA
[5] UNIV CALIF SAN FRANCISCO, DEPT RADIOL, SAN FRANCISCO, CA 94143 USA
[6] SALUTAR INC, SUNNYVALE, CA USA
[7] UNIV TURKU, DEPT DIAGNOST RADIOL, SF-20520 TURKU 52, FINLAND
[8] ACAD SCI USSR, INST CHEM PHYS, MOSCOW V-71, USSR
[9] BRACCO IND CHIM SPA, DIV RES & DEV, MILAN, ITALY
[10] UNIV CALIF SAN FRANCISCO, DEPT RADIOL, SAN FRANCISCO, CA 94143 USA
[11] BRISTOL MYERS SQUIBB PHARMACEUT RES INST, DEPT CONTRAST MEDIA, NEW BRUNSWICK, NJ USA
[12] MASSACHUSETTS GEN HOSP, DEPT RADIOL, BOSTON, MA 02114 USA
[13] MOLEC BIOSYST INC, SAN DIEGO, CA USA
[14] UNIV CALIF SAN DIEGO, LA JOLLA, CA 92093 USA