Retroperitoneal extraskeletal osteosarcoma in a dog: a case report. Ciencias veterinarias, [S. l.], v. 34, n. 1, p. 55–63, 2016. DOI: 10.15359/rcv.34-1.5. Disponível em: https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/8491.. Acesso em: 26 dec. 2024.