Results of the Intergroup Rhabdomyosarcoma Study Group D9602 protocol, using vincristine and dactinomycin with or without cyclophosphamide and radiation therapy, for newly diagnosed patients with low-risk embryonal rhabdomyosarcoma: a report from the Soft Tissue Sarcoma Committee of the Childrenʼs Oncology Group - Raney, R B; Walterhouse, D O; Meza, J L (J Clin Oncol, 2011)