[1] NCI, Dev Therapeut Clin, Div Canc Treatment & Diag, Bethesda, MD 20892 USA
[2] Stanford Univ, Div Oncol, Phase Clin Res 1, Palo Alto, CA 94304 USA
[3] NCI, Div Canc Treatment & Diag, Bethesda, MD 20892 USA
[4] Southern Res Inst, Drug Discovery Div, Birmingham, AL USA
[5] NCI, Biometr Res Program, Bethesda, MD 20892 USA
[6] Frederick Natl Lab Canc Res, Appl Dev Res Directorate, Frederick, MD USA
[7] Leidos Biomed Res, Clin Monitoring Res Program, Bethesda, MD USA