Combination Cancer Immunotherapy Targeting TNFR2 and PD-1/PD-L1 Signaling Reduces Immunosuppressive Effects in the Microenvironment of Pancreatic Tumors. (2022) - Zhang, X.; Lao, M.; Duan, Y.; Xu, J.; Yang, H.; Ying, H.; Sun, K.; Bai, X.; Liang, T.