1)Mitsuishi T, Hamatani S, Hirooka S, et al. Clinicopathological characteristics of duodenal epithelial neoplasms:Focus on tumors with a gastric mucin phenotype(pyloric gland-type tumors). PLoS One 12:e0174985, 2017
2)Minatsuki C, Yamamichi N, Inada KI, et al. Expression of gastric markers is associated with malignant potential of nonampullary duodenal adenocarcinoma. Dig Dis Sci 63:2617-2625, 2018
3)Toba T, Inoshita N, Kaise M, et al. Clinicopathological features of superficial non-ampullary duodenal epithelial tumor:gastric phenotype of histology correlates to higher malignant potency. J Gastroenterol 53:64-70, 2018
4)Ushiku T, Arnason T, Fukayama M, et al. Extra-ampullary duodenal adenocarcinoma. Am J Surg Pathol 38:1484-1493, 2014
5)Toya Y, Endo M, Akasaka R, et al. Clinicopathological features and magnifying chromoendoscopic findings of non-ampullary duodenal epithelial tumors. Digestion 97:219-227, 2018
6)Toya Y, Endo M, Oizumi T, et al. Diagnostic algorithm of magnifying endoscopy with crystal violet staining for non-ampullary duodenal epithelial tumors. Dig Endosc 32:1066-1073, 2020
7)Toya Y, Endo M, Matsumoto T. Revised diagnostic algorithm of magnifying endoscopy with crystal violet staining for non-ampullary duodenal epithelial tumors. Dig Endosc 34:245, 2022
8)Kakushima N, Yoshida M, Iwai T, et al. A simple endoscopic scoring system to differentiate between duodenal adenoma and carcinoma. Endosc Int Open 5:E763-E768, 2017
9)Matsueda K, Uedo N, Kitamura M, et al. Pre-ampullary location and size ≧10mm are independent predictors for high-grade superficial non-ampullary duodenal epithelial tumors. J Gastroenterol Hepatol 36:1605-1613, 2021
10)Yoshimura N, Goda K, Tajiri H, et al. Endoscopic features of nonampullary duodenal tumors with narrow-band imaging. Hepatogastroenterology 57:462-467, 2010
11)Kikuchi D, Hoteya S, Iizuka T, et al. Diagnostic algorithm of magnifying endoscopy with narrow band imaging for superficial non-ampullary duodenal epithelial tumors. Dig Endosc 26(Suppl 2):16-22, 2014
12)Tsuji S, Doyama H, Tsuji K, et al. Preoperative endoscopic diagnosis of superficial non-ampullary duodenal epithelial tumors, including magnifying endoscopy. World J Gastroenterol 21:11832-11841, 2015
13)Kakushima N, Yoshida M, Yamaguchi Y, et al. Magnified endoscopy with narrow-band imaging for the differential diagnosis of superficial non-ampullary duodenal epithelial tumors. Scand J Gastroenterol 54:128-134, 2019
14)Nakayama A, Kato M, Takatori Y, et al. How I do it:Endoscopic diagnosis for superficial non-ampullary duodenal epithelial tumors. Dig Endosc 32:417-424, 2020
15)Ishii R, Ohata K, Sakai E, et al. Simple scoring system for the diagnosis of superficial non-ampullary duodenal epithelial tumors. Dig Endosc 33:399-407, 2021
16)Kakushima N, Yoshida M, Takizawa K, et al. White light and/or magnifying endoscopy with narrow band imaging for superficial nonampullary duodenal epithelial tumors. Scand J Gastroenterol 56:211-218, 2021
17)Miura H, Tanaka K, Umeda Y, et al. Usefulness of magnifying endoscopy with acetic acid and narrow-band imaging for the diagnosis of duodenal neoplasms:proposal of a diagnostic algorithm. Surg Endosc 36:8086-8095, 2022