CASTRICONI, Roberta et al. PD-L1 expression in metastatic neuroblastoma as an additional mechanism for limiting immune surveillance. Italian Journal of Anatomy and Embryology, [S. l.], v. 120, n. 1, p. 26, 2015. Disponível em: https://oajournals.fupress.net/index.php/ijae/article/view/3980. Acesso em: 8 dec. 2025.