1. Korea Central Cancer Registry. Annual report of cancer statistics in Korea in 2009 2011;50-62.
2. Ogawa K, Shikama N, Toita T, Nakamura K, Uno T, Onishi H, Itami J, Kakinohana Y, Kinjo T, Yoshii Y, Ito H, Murayama S. Long-term results of radiotherapy for intracranial germinoma: a multi-institutional retrospective review of 126 patients. Int J Radiat Oncol Biol Phys 2004;58:705-713.
3. Bourne JP, Geyer R, Berger M, Griffin B, Milstein J. The prognostic significance of postoperative residual contrast enhancement on CT scan in pediatric patients with medulloblastoma. J Neurooncol 1992;14:263-270.
4. Merchant TE, Mulhern RK, Krasin MJ, Kun LE, Williams T, Li C, Xiong X, Khan RB, Lustig RH, Boop FA, Sanford RA. Preliminary results from a phase II trial of conformal radiation therapy and evaluation of radiation-related CNS effects for pediatric patients with localized ependymoma. J Clin Oncol 2004;22:3156-3162.
5. MacDonald SM, Yock TI. Proton beam therapy following resection for childhood ependymoma. Childs Nerv Syst 2010;26:285-291.
6. Chi SN, Gardner SL, Levy AS, Knopp EA, Miller DC, Wisoff JH, Weiner HL, Finlay JL. Feasibility and response to induction chemotherapy intensified with high-dose methotrexate for young children with newly diagnosed high-risk disseminated medulloblastoma. J Clin Oncol 2004;22:4881-4887.