Hashimoto, Kazuhiko, Shunji Nishimura, Tomohiko Ito, and Masao Akagi. 2021. “Characterization of PD-1/PD-L1 Immune Checkpoint Expression in Soft Tissue Sarcomas”. European Journal of Histochemistry 65 (3). https://doi.org/10.4081/ejh.2021.3203.