1Chinese guideline for the diagnosis and management of intra-abdominal infection(2019 edition)Chinese Society of Surgical Infection and Intensive Care,Chinese Society of Surgery,Chinese Medical Association, Chinese College of Gastrointestinal Fistula Surgeons,Chinese College of Surgeons, Chinese Medical Doctor Association1-162Chinese expert consensus on multidisciplinary diagnosis and treatment of hepatocellular carcinoma with hepatic vein or inferior vena cave tumor thrombus(2019 edition)Chinese Sociaty of Liver Cancer, Chinese Medical Doctor Association17-223Twenty year progression and future directions of minimally invasive surgeryZHENG Min-Hua, MA Jun-Jun, WU Chao23-26,324Prospect of clinical nutrition in surgery in the past 20 yearsYANG Hua, GU Ying-chao27-325Argument and progress of fluid therapy for sepsisREN Jian-an33-366Present status and progress of clinical liver transplantation for hepatocellular carcinomaZHOU Jian, XIAO Yong-sheng37-41720 years of clinical research on cholelithiasis in the new century:development,problems and prospectsLU Qi-ping42-478Developments in clinical research on pancreatic cancer:Current and future perspectivesYANG Yin-mo, TIAN Xiao-dong, XU Jing-yong48-529Progress and prospect of clinical research in spleen surgeryJIANG Hong-chi, ZHOU Meng-hua53-57,6110The progress and the future of gastrointestinal surgery for the past 20 yearsLIU Feng-lin, QIN Xin-yu58-6111Advance and prospect of clinical research on minimally invasive surgery for gastric cancer (the year of 2000 to 2020)LI Guo-xin, LIU Hao62-64,6912Advances and prospects in clinical research of colorectal cancer surgeryZHANG Zhong-tao, YANG Ying-chi65-6913Advances and prospects of clinical research in vascular surgeryCHEN Zhong, YANG Yao-guo70-7714Current status and future perspectives in differentiated thyroid cancerTIAN Wen, XI Hong-qing78-8215Precise treatment of breast cancer:two decades of explorationJIANG Ze-fei, XU Feng-rui83-8816The development of hernia and abdominal wall surgery in China and the challenge of innovation in the new centuryTANG Jian-xiong, LI Shao-jie89-9217Methodological guidance for surgical research-introduction and interpretation of the IDEAL framework and recommendationsSHAN Fei, YIN Dao-xin, LI Zi-yu93-10118New way of operation for insufficient volume of future liver remnant——liver venous deprivationWANG Ming-yu, LIANG Ying-jian, YIN Bing102-10519Annual report of Chinese Colorectal Cancer Surgery Database in 2019:A nationwide registry studyYAO Hong-wei, LI Xin-xiang, CUI Long106-110,11620Risk factors for positive pathological circumferential resection margin after transanal total mesorectal excision:a nationwide registry study with 805 cases of rectal cancerYAO Hong-wei, ZHANG Hong-yu, REN Ming-yang111-116 