[1] Tennessee Oncol PLLC, Sarah Cannon Res Inst, Nashville, TN USA
[2] Carolina BioOncol Inst, Huntersville, NC USA
[3] Univ Colorado, Denver, CO 80202 USA
[4] Univ Colorado, Sch Med, Aurora, CO USA
[5] Duke Univ, Med Ctr, Durham, NC USA
[6] Yale Univ, Sch Med, Dept Med Oncol, New Haven, CT USA
[7] Massachusetts Gen Hosp, Ctr Canc, Boston, MA USA
[8] Genentech Inc, San Francisco, CA 94080 USA
[9] F Hoffmann La Roche Ltd, Basel, Switzerland
[10] Georgetown Univ, Lombardi Comprehens Canc Ctr, Washington, DC USA