[1] Childrens Hosp Boston, Div Pediat Hematol Oncol, Stem Cell Transplantat Program, Boston, MA 02115 USA
[2] Dana Farber Canc Inst, Boston, MA 02115 USA
[3] Harvard Univ, Sch Med, Dept Biol Chem & Mol Pharmacol, Boston, MA 02115 USA
[4] Harvard Stem Cell Inst, Cambridge, MA 02138 USA
[5] Howard Hughes Med Inst, Boston, MA 02115 USA
[6] Harvard Univ, Sch Med, Dept Biomed Informat, Boston, MA 02115 USA
[7] Peking Univ, Sch Math Sci, Beijing 100871, Peoples R China
[8] Peking Univ, Ctr Stat Sci, Beijing 100871, Peoples R China
[9] Hebrew Univ Jerusalem, Inst Life Sci, Dept Genet, Stem Cell Unit, IL-91904 Jerusalem, Israel
[10] Peking Univ, Coll Life Sci, Beijing 100871, Peoples R China
[11] Peking Univ, Peking Tsinghua Ctr Life Sci, Beijing 100871, Peoples R China
[12] Massachusetts Gen Hosp, Ctr Canc, Boston, MA 02114 USA
[13] Ctr Regenerat Med, Boston, MA 02114 USA
[14] Whitehead Inst Biomed Res, Cambridge, MA 02142 USA
[15] Univ London Imperial Coll Sci Technol & Med, MRC, Ctr Clin Sci, London W12 0NN, England
[16] Stanford Univ, Inst Stem Cell Biol & Regenerat Med, Stanford, CA 94305 USA
[17] Chinese Acad Sci, Guangzhou Inst Biomed & Hlth, South China Inst Stem Cell Biol & Regenerat Med, Guangzhou 510530, Guangdong, Peoples R China
[18] Hosp Sick Children, Res Inst, Toronto, ON M5G 0A4, Canada