CMTM6 and PD-L1 coexpression is associated with an active immune microenvironment and a favorable prognosis in colorectal cancer ================================================================================================================================ * Qi-Hua Peng * Chun-Hua Wang * Hong-Min Chen * Rong-Xin Zhang * Zhi-Zhong Pan * Zhen-Hai Lu * Gao-Yuan Wang * Xin Yue * Wenlin Huang * Ran-Yi Liu