Safety and clinical efficacy of an anti-PD-L1 antibody (c4G12) in dogs with advanced malignant tumours. - Maekawa N; Konnai S; Hosoya K; Kim S; Kinoshita R; Deguchi T; Owaki R; Tachibana Y; Yokokawa M; Takeuchi H; Kagawa Y; Takagi S; et al. (PloS one, 2023)