Gonong, D. A., and M. Madrid. “Metachronous Primary Cerebral Rhabdomyosarcoma After Treatment of Oral Primitive Neuroectodermal Tumor/ Ewing’s Sarcoma in a School-Aged Girl: A Case Report”. PJP, Vol. 5, no. 2, Dec. 2020, pp. 53-59, doi:10.21141/PJP.2020.13.