1Tanaka K, Toyoda H, Kadowaki S,et al. Surface pattern classi- fication by enhanced-magnification endoscopy for iden.tifying early gastric cancers[J]. Gastrointest Endosc,2008, 67: 430-437.
2Yagi, Kazuyoshi, Nakamura. Magnifying endoscope with narrow band imaging for early differentiated gastricadenocarcinamo[J]. Digestive Endoscopy,2008, 20: 115-122.
3Inoue H, Kodama K, Minami H,et al. NBI magnifying endoscop- ic classification using crystal violet staining[J]. Nippon Rinsho, 2008,66: 1023-1027.
