Levels between BAK (and BAX) and PRO-CASPASE 3 (and PRO-CASPASE 9), BCL(X)L and BCL2, PRO-CASPASE 3 and BCL2, BCL2 and MCL1, BCL2 and XIAP, SMAC and BCL(X)L, PRO-CASPASE 3 and PRO-CAPSASE 9, and PRO-CASPASE 3 and XIAP had high positive median correlation coefficients in cancer and stromal, but not immune cells. Here, BAK1 is linked to cancer.