Hashimoto K, Nishimura S, Ito T, Akagi M. Characterization of PD-1/PD-L1 immune checkpoint expression in soft tissue sarcomas. Eur J Histochem [Internet]. 2021 Jul. 2 [cited 2024 Nov. 24];65(3). Available from: https://www.ejh.it/index.php/ejh/article/view/3203