IVANOV, Y.; PATRIKOV, K.; SLAVCHEV, S.; ANDREEV, A. Our Experience with the Modular Universal Tumour and Revision System in Pediatric Patients with Ewing’s Sarcoma – Report of Six Cases. Proceedings of the Bulgarian Academy of Sciences, Sofia, Bulgaria, v. 76, n. 2, p. 302–308, 2023. DOI: 10.7546/CRABS.2023.02.15. Disponível em: https://proceedings.bas.bg/index.php/cr/article/view/261. Acesso em: 23 mar. 2023.