6Dawsey SM, Lewin K J, Wang GQ, et al. Squamouse esophageal histology and subsequent risk of squamous cell carcinoma of the esophagus. A prospective follow-up study from Linxian, China[J]. Cancer, 1994, 74(6): 1686-1692.
7Wang GQ. Histological squamous cell carcimona results from a 13 years prospective follow up study in a high risk population[J]. Gut, 2005, 54(2):187-92.
8TANABE S, KOIZUMI W, M1TOMI H, et al. Clinical outcome of endoscopic aspiration mucosectomy for earl), stage gastric cancer [J]. Gastmintest Endasc, 2002, 56(5): 708-713.
9MUTO M, M1YAMOTO S, HOSOKAWA A, e~ al. Endoscopic mucosal resection in the stomach using the insulated-tip nee- die-knife[J]. Endoscopy, 2005, 37(2): 175-182.
10OKA S, TANAKA S, KANEKO I, et al. Advantage of endoscopic submucosal dissection compared with EMR for early gastric can- cer[J]. Gaslrointest Endosc, 2006, 64(6): 877-883.