Similarly, univariate analysis in the primary cohort showed that serum-CEA, -CA199, -ALB, -GGT, -ALT, -ALP, tumor size, TNM, and MRP8/MRP14 ratio combination were predictors for OS; serum-ALB, -ALP, tumor size, TNM, and MRP8/MRP14 ratio combination were predictors for TTR (Supplementary Table S2). Here, TTR is linked to neoplasm.