GOLM1 and neoplasm: However, GP73 serum levels were unaltered between patients with different tumor localization (intrahepatic CCA, perihilar tumors, distal CCA, and gallbladder cancer, Figure 2A), different TNM-status (Figure 2B–D), or different tumor grading (moderately differentiated (G2) vs. poorly differentiated (G3), Figure 2E).