1Kudo Sinea. Early colorectal cancer- detection of depressed types of colorectal carcinoma [ M ]. Tokyo: Igaku-Shoin Medical Publisher, 1996.50.
2Kudo S,Tamura S, Nakajima T, et al. Diagnosis of coloreetal tumorous lesions by magnifying endoscopy[ J ]. Gastrointest Endosc, 1996,44 : 8 - 14.
3Chiu HM, Chang CY, Chen CC, et al. A prospective comparative study of narrow band imaging, chromoendoscopy, and conventional colonoscopy in the diagnosis of eolorectal neoplasia[ J ]. Gut, 2007,56 : 373 - 379.
