Figure 1.

Mean serum CA19-9 and CEA concentrations. aP < 0.001, bP < 0.05 vs benign biliary diseases or healthy individuals. cP < 0.05 vs serum CEA.

Mean serum CA19-9 and CEA concentrations. aP < 0.001, bP < 0.05 vs benign biliary diseases or healthy individuals. cP < 0.05 vs serum CEA.