[1] Saitama Childrens Med Ctr, Dept Hematol Oncol, Saitama, Japan
[2] Saitama Childrens Med Ctr, Dept Neurosurg, Saitama, Japan
[3] Osaka Natl Hosp, Inst Clin Res, Natl Hosp Org, Dept Biomed Res & Innovat, Osaka, Japan
[4] Natl Canc Ctr, Div Brain Tumor Translat Res, Tokyo, Japan
[5] Juntendo Univ, Dept Brain Dis Translat Res, Fac Med, Tokyo, Japan
[6] Saitama Childrens Med Ctr, Dept Clin Res, Saitama, Japan
[7] Natl Ctr Child Hlth & Dev, Childrens Canc Ctr, Tokyo, Japan
[8] Osaka Univ, Dept Neurosurg, Grad Sch Med, Osaka, Japan
[9] Osaka City Gen Hosp, Dept Pediat Hematol & Oncol, Osaka, Japan
[10] Chiba Childrens Hosp, Dept Neurosurg, Chiba, Japan
[11] Kanagawa Childrens Med Ctr, Div Hematol Oncol, Yokohama, Kanagawa, Japan
[12] Nagano Childrens Hosp, Dept Neurosurg, Nagano, Japan
[13] Univ Toyama, Grad Sch Med & Pharmaceut Sci, Dept Neurosurg, Toyama, Japan
[14] Tohoku Univ, Grad Sch Med, Dept Neurosurg, Sendai, Miyagi, Japan
[15] Okayama Univ, Grad Sch, Dept Neurol Surg, Okayama, Japan
[16] Nara Med Univ, Dept Neurosurg, Nara, Japan
[17] Hyogo Prefectural Kobe Childrens Hosp, Dept Neurosurg, Kobe, Hyogo, Japan
[18] Saitama Med Univ, Dept Pathol, Moroyama, Saitama, Japan
[19] Saitama Med Univ, Int Med Ctr, Dept Neurooncol Neurosurg, Hidaka, Japan
[20] Kyorin Univ, Fac Med, Dept Neurosurg, Mitaka, Tokyo, Japan