6MIMICA M. Choice of age cut-off for endoscopy in dyspepsia in developing countries according to incidence of gastric cancer [ J]. Coll Antropol, 2005,29 ( 2 ) : 599.
7MOHAMMAD Y,NASER R, FARHAD S, et al. Hereditary risk factors for the development of gastric cancer in younger patients [ J ].BMC Gastroenterology ,2004,4 ( 28 ) : 1.
8OHASHI A,NIWA Y ,OHMIYA N ,et al. Quantitative analysis of the microvascular architecture observed on magnification endoscopy in cancerous and benign gastric lesions [ J ]. Endoscopy,2005,37 ( 12 ) :1215.