[1] Stanford Univ, Sch Med, James H Clarke Ctr, Dept Radiol, Stanford, CA 94305 USA
[2] Univ Calif Los Angeles, Sch Med, Crump Inst Mol Imaging, Los Angeles, CA 90095 USA
[3] Univ Calif Los Angeles, Sch Med, Dept Urol, Los Angeles, CA 90095 USA
[4] Univ Calif Los Angeles, Sch Med, Dept Biol Chem, Los Angeles, CA 90095 USA
[5] Univ Calif Los Angeles, Sch Med, Dept Mol & Med Pharmacol, Los Angeles, CA 90095 USA
[6] Univ Calif Los Angeles, Sch Med, Jonsson Comprehens Canc Ctr, Los Angeles, CA 90095 USA
[7] Univ Calif Los Angeles, Sch Med, Dept Biomath, Los Angeles, CA 90095 USA