Deciphering the significance of tumor necrosis and developing a grading system in combined hepatocellular-cholangiocarcinoma: A multicenter pathological study. - Wang H; Qian YW; Sheng X; Xia CY; Chen HZ; Cao ZY; Yu H; Zhou YY; Cong WM; He MX; Dong H (Pathology, research and practice, 2026)