Department of General Surgery Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China;
Department of General Surgery Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China;
Department of General Surgery Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China;
Department of General Surgery Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China;
Department of General Surgery Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China;
extrahepatic cholangiocarcinoma; histone methyltransferase; G9a;