Bispo Júnior, R. Z.; Camargo, O. P. de. Prognostic Factors in the Survival of Patients Diagnosed With Primary Non-Metastatic Osteosarcoma With a Poor Response to Neoadjuvant Chemotherapy . Clinics 2009, 64 (12), 1177-1186. https://doi.org/10.1590/S1807-59322009001200007.