[1] Barbara Ann Karmanos Canc Inst, Detroit, MI USA
[2] Ohio State Univ, Columbus, OH 43210 USA
[3] Harbor UCLA Med Ctr, Dept Internal Med, Med Oncol Hematol, Torrance, CA 90509 USA
[4] Wayne State Univ, Sch Med, Detroit, MI USA
[5] Albert Einstein Coll Med, Bronx, NY USA
[6] Stanford Univ, Med Ctr, Stanford, CA 94305 USA
[7] Kaiser Permanente, Div Res, Oakland, CA USA