Additional file 3. Fig.S3Correlation of PD-1and TIM-3 with SPOCK1 and POSTN expressions in immunohistologicalstaining of CRCtissues. (A, B) SPOCK1expression is positively correlated with the expressions of PD-1 andTIM-3. (C, D)POSTN expression is positively correlated with the expressions ofPD-1 and TIM-3.Each dotrepresents a sample tissue.