label: Treatment Arm for COG ACNS0334 Combination Chemotherapy Followed By Peripheral Stem Cell Transplant in Treating Young Patients with Newly Diagnosed Supratentorial Primitive Neuroectodermal Tumors or High-Risk Medulloblastoma
label_lc: treatment arm for cog acns0334 combination chemotherapy followed by peripheral stem cell transplant in treating young patients with newly diagnosed supratentorial primitive neuroectodermal tumors or high-risk medulloblastoma