[1] Duke Univ, Sch Med, Dept Med, Durham, NC USA
[2] Univ Chicago, Dept Stat, Chicago, IL USA
[3] Fred Hutchinson Canc Ctr, Seattle, WA USA
[4] Univ Chicago, Hematol Oncol Sect, Dept Med, Chicago, IL USA
[5] Duke Univ, Sch Med, Div Hematol Malignancies & Cellular Therapy, Durham, NC USA