label: Treatment Arm for EURO-E.W.I.N.G.99 Combination Chemotherapy with or without Peripheral Stem Cell Transplantation, Radiation Therapy, and/or Surgery in Treating Patients with Ewing's Sarcoma
label_lc: treatment arm for euro-e.w.i.n.g.99 combination chemotherapy with or without peripheral stem cell transplantation, radiation therapy, and/or surgery in treating patients with ewing's sarcoma