4Lian J, Chen S, Zhang Y, et al. A meta-analysis of endo- scopic submucosal dissection and EMR for early gastric canc- er [J. Gastrointest Endosc, 2012, 76(4): 763-770.
5Park Y M, Cho E, Kang H Y, et al. The effectiveness and safety of endoscopic submucosal dissection compared with endoscopic mucosal resection for early gastric cancer: a sys- tematic review and metaanalysis [ J ]. Surg Endosc, 2011, 25(8) :2666-2677.
6Cao Y, Liao C, Tan A, et al. Meta-analysis of endoscopic submucosal dissection versus endoscopic mucosal resection for tumors of the gastrointestinal tract [ J ]. Endoscopy, 2009, 41(9) : 751 -757.
7Nonaka S, Saito Y, Takisawa H, et al. Safety of carbon di- oxide insufflation for upper gastrointestinal tract endoscopictreatment of patients under deep sedation [ J ]. Surg Endosc, 2010, 24(7) :1638 - 1645.
8Onogi F, Araki H, Ibuka T, et al. "Transmural air leak" : a computed tomographic finding following endoscopic sub- mucosal dissection of gastric tumors [ J ]. Endoscopy, 2010, 42(6) :441 -447.
9Hanaoka N, Ishihara R, Takeuchi Y, et al. Intralesional steroid injection to prevent stricture after endoscopic submu- cosal dissection for esophageal cancer: a controlled prospec- tive study [J]. Endoscopy, 2012, 44(11) :1007 - 1011.
10Yamaguchi N, Isomoto H, Nakayama T, et al. Usefulness of oral prednisolone in the treatment of esophageal stricture after endoscopic submucosal dissection for superficial esoph- ageal squamous cell carcinoma [ J ]. Gastrointest Endosc, 2011, 73(6) : 1115 -1121.