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This schematic flow chart displays the population of patients with intrahepatic cholangiocarcinoma (ICC) who underwent hepatectomy between 2000 and 2005 and were registered in the nation‐wide database of the Liver Cancer Study Group of Japan. Combined HCC‐CC indicates combined hepatocellular cholangiocarcinoma; HCC, hepatocellular carcinoma; IG, intraductal growth; MF, mass forming; PI, periductal infiltrating.
