1From a surgeon to a master surgeonLau. W.Y.1-42Several issues in clinical research in surgery deserve attentionJIANG Hong-chi, MA Yong5-73How to establish a high quality clinical surgical researchLIU Lian-xin8-104Employment of randomization and his reflection of ethics in surgical clinical research designYANG Zhen11-135Bias and validity in surgical clinical trialLOU Wen-hui14-176Causes to leading to bias and common bias in clinical researches of surgeryLIU Xu-bao18-207Statistical tests for surgical clinical researchZHANG Bo-heng21-248In regard to japanese gastric cancer treatment guidelines-the 3rd EditionHU Xiang25-309Effectiveness and safety of endovascular repair versus open repair for abdominal aortic aneurysms: a systematic review and meta-analyses of randomized controlled trials34-3910Value of abdominal three-dimensional medical image visible system in diagnosis and treatment of hepatolithiasis40-4311da Vinci Robot-Assisted resection for hilar cholangiocarcinoma: preliminary experience from china44-46,5612Research for 3 cases on the clinical characteristics of pancreatic metastasis tumor from renal clear cellsZHANG Lei, JI Yuan, LOU Wen-hui, WANG Dan-song, XU Xue-feng, JIN Da-yong47-4913Primary retroperitoneal perivascular epithelioid cell tumor coexisting with renal angiomyolipoma and tuberous sclerosis: a case report and literature review50-5214Study on the effect of different temporary abdominal closed materials to wound healing after open abdomen53-5615Treatment and prognosis of pseudomyxoma peritonei57-58,6216Cathepsin-D and nm23 provide the predictive value of response to anthracycline-based neoadjuvant chemotherapy in breast cancerCHEN Yi-zuo, CHEN Can-ming, FEI Fei, ZHANG Jia-xin, LU Jin-song, DI Gen-hong, LIU Guang-yu, YANG Wen-tao, LU Hong-fen, SHEN Kun-wei, SHEN Zhen-zhou, SHAO Zhi-min, WU Jiong59-6217Stereotactic guided mammotome biopsies in diagnosis of suspicious breast microcalcifications63-6518Application of intraoperative neromonitoring during complex thyroid operation66-68 