3Fleischer DE, Wang GQ, Dawsey S, et al. Endoscopic therapy for esophageal dysplasia(ED) and early esophageal cancer(EEC) in Linxian, China 1998:implications for America. Gastrointest Endosc, 1999, 49:198.
4Makuuchi H. Endoscopic mucosal resection for mucosal cancer in the esophagus. Gasrointest Endosc Clin N Am, 2001,11:445-458.
5Fleischer DE, Wang GQ, Dawsey S, et al. Tissue band ligation followed by snare resection(band and snare):a new technique for tissue acquisition in the esophagus. Gastrointest Endosc, 1996, 44:68-72.
6Grund KE, Storek D, Farin G, et al. Endoscopic argon plasma coagulation(APC) first clinical experience in flexible endoscopy. Endosc Surg, 1994, 2:42-46.
