[1] Dana Farber Canc Inst, Boston, MA 02215 USA
[2] Chinese Acad Med Sci & Peking Union, Inst Hematol, Tianjin, Peoples R China
[3] Chinese Acad Med Sci & Peking Union, Blood Dis Hosp, Tianjin, Peoples R China
[4] Chinese Acad Med Sci, Inst Hematol, Tianjin, Peoples R China
[5] Harvard Dana Farber Canc Inst, Boston, MA 02215 USA
[6] Harvard Med Sch, Dana Farber Canc Inst, Med Oncol, Boston, MA USA