[1] Jilin Univ, Hosp 1, Inst Translat Med, Changchun 130031, Peoples R China
[2] Jilin Univ, Hosp 1, Dept Neurosurg, Changchun 130031, Peoples R China
[3] MedImmune, Gaithersburg, MD 20878 USA
[4] Univ Minnesota, Sch Med, Dept Hematol Oncol, Minneapolis, MN 55455 USA
[5] Univ Minnesota, Sch Med, BMT Dept Pediat, Minneapolis, MN 55455 USA