LI, Fan; ZHANG, De-bao; MA, Yue; SONG, Yang; DUAN, Xian-liang. Effects of combined sintilimab and chemotherapy on progression-free survival and overall survival in osteosarcoma patients with metastasis: Chemotherapy in Treating Metastatic Osteosarcoma. Pakistan Journal of Medical Sciences, [S. l.], v. 40, n. 4, 2024. DOI: 10.12669/pjms.40.4.8536. Disponível em: https://www.pjms.org.pk/index.php/pjms/article/view/8536. Acesso em: 10 feb. 2026.