1Consensus of Chinese expert panel on key difficult points of diagnosis and treatment in gastric cancer (2020 edition)Gastric Cancer Association,China Anti-Cancer Association869-9042New trends in clinical research and treatment of gastric cancer surgery in JapanHU Xiang905-9083A review of International Consensus Guidelines for Surgery and the Timing of Intervention in Chronic PancreatitisZHANG Ao-ran, YANG Yin-mo909-9124Rational understanding of preoperative chemoradiotherapy for rectal cancer from the surgical perspectiveSHEN Zhan-long, YE Ying-jiang, WANG Shan913-9175Key points of tissue expander reconstruction after mastectomy for breast cancerHAO Shuang, SHAO Zhi-min, WU Jiong918-9216Double and a half layered anastomosis method for high esophagojejunal anastomosis in elderly patients with gastric cancerMA Peng-fei, CAO Yang-hui, ZHANG Jun-li922-9257Risk factors of recurrence after radical gastrectomy in elderly gastric cancer patientsLU Jun, WU Dong, ZHENG Chao-hui926-9318The predictive value of preoperative serum CA19-9 combined with CA125 for the prognosis of patients with intrahepatic cholangiocarcinomaZHAO Ying, LIAO Bing, CHEN Wei932-9389Pancreatic duct stenting for pancreatic enucleation of pancreatic tumor in proximity to the main pancreatic ductXU Qiang, WANG Qiang, ZHU Liang939-94210Performance analysis on trainees in hands-on cadaveric dissection course of Chinese transanal total mesorectal excision structured trainingAN Yong-bo, LI Jun, JIANG Hong-peng943-94911Study on the safety of lateral lymph node dissection in "two spaces" based on fascia anatomy for low rectal cancerLIU Hai-long, LI A-jian, WANG Wen-chao950-95612A predictive model of nipple-areola complex involvement for indicating nipple-sparing mastectomy in immediate breast reconstruction patientsXU Yuan-bing, HUANG Xiao-yan, CHEN Jia-jian957-96313Interventional treatment for isolated iliac artery aneurysm: A clinical data of 39 casesLIU Xun-qiang, CHEN Huan-jun, ZHANG Jin-hui964-96814Progress of research on preoperative biliary drainage for biliary malignant tumorsSHAO Zi-yu, WU Wen-guang, LIU Ying-bin969-97215Application progress of debulking technique in the treatment of peripheral arterial diseaseJIANG Xiao-lang, DONG Zhi-hui, FU Wei-guo973-976 