The degree of microsatellite instability predicts response to PD-1 blockade immunotherapy in mismatch repair-deficient/microsatellite instability-high colorectal cancers. - Wang, Qiao-Xuan; Qu, Chun-Hua; Gao, Yuan-Hong; Ding, Pei-Rong; Yun, Jing-Ping; Xie, Dan; Cai, Mu-Yan (Experimental Hematology & Oncology, 2021)