[1] Univ South Carolina, Dept Biomed Engn, Columbia, SC USA
[2] Ludwig Maximilians Univ Munchen, Dr von Hauner Univ Childrens Hosp, Munich, Germany
[3] Boston Childrens Hosp, Stem Cell Program, Boston, MA USA
[4] Boston Childrens Hosp, Div Hematol Oncol, Boston, MA USA
[5] Dana Farber Canc Inst, Boston, MA 02115 USA
[6] Harvard Med Sch, Harvard Stem Cell Inst, Childrens Hosp Boston, Stem Cell Program, Boston, MA USA
[7] Harvard Med Sch, Harvard Stem Cell Inst, Childrens Hosp Boston, Div Hematol Oncol, Boston, MA USA
[8] Howard Hughes Med Inst, Boston, MA 02115 USA
[9] Univ South Carolina, Dept Biol Sci, Columbia, SC USA