Guerra RB, Tostes MD, Miranda L da C, Camargo OP de, Baptista AM, Caiero MT, et al. Comparative analysis between osteosarcoma and Ewing’s sarcoma: evaluation of the time from onset of signs and symptoms until diagnosis . Clinics [Internet]. 2006 Apr. 1 [cited 2024 Jun. 27];61(2):99-106. Available from: https://revistas.usp.br/clinics/article/view/17517