[1] Kaiser Permanente Northern Calif, Div Res, Oakland, CA USA
[2] Univ Calif San Francisco, Sch Med, San Francisco, CA USA
[3] Univ Calif San Francisco, Dept Clin Pharm, San Francisco, CA USA
[4] Mem Sloan Kettering Canc Ctr, Affordabil Working Grp, New York, NY USA
[5] Kaiser Permanente, Div Res, 2000 Broadway, Oakland, CA 94612 USA