4. Sumiyama K. Past and current trends in endoscopic diagnosis for early stage gastric cancer in Japan. Gastric Cancer 2017;20((Suppl 1):20-27.
8. Kim SG, Ji SM, Lee NR, Park SH, You JH, Choi IJ, Lee WS, Park SJ, Lee JH, Seol SY, Kim JH, Lim CH, Cho JY, Kim GH, Chun HJ, Lee YC, Jung HY, Kim JJ. Quality of life after endoscopic submucosal dissection for early gastric cancer: a prospective multicenter cohort study. Gut Liver 2017;11:87-92.
10. Park CH, Yang DH, Kim JW, Kim JH, Kim JH, Min YW, Lee SH, Bae JH, Chung H, Choi KD, Park JC, Lee H, Kwak MS, Kim B, Lee HJ, Lee HS, Choi M, Park DA, Lee JY, Byeon JS, Park CG, Cho JY, Lee ST, Chun HJ. Clinical practice guideline for endoscopic resection of early gastrointestinal cancer. Clin Endosc 2020;53:142-166.
13. Bang BW, Kim HG. Endoscopic classification of intestinal metaplasia. Korean J Helicobacter Up Gastrointest Res 2013;13:78-83.
14. Yao K, Uedo N, Kamada T, Hirasawa T, Nagahama T, Yoshinaga S, Oka M, Inoue K, Mabe K, Yao T, Yoshida M, Miyashiro I, Fujimoto K, Tajiri H. Guidelines for endoscopic diagnosis of early gastric cancer. Dig Endosc 2020;32:663-698.
16. Pimenta-Melo AR, Monteiro-Soares M, Libanio D, DinisRibeiro M. Missing rate for gastric cancer during upper gastrointestinal endoscopy: a systematic review and metaanalysis. Eur J Gastroenterol Hepatol 2016;28:1041-1049.
17. Kawamura T, Wada H, Sakiyama N, Ueda Y, Shirakawa A, Okada Y, Sanada K, Nakase K, Mandai K, Suzuki A, Kamaguchi M, Morita A, Nishioji K, Tanaka K, Mochizuki N, Uno K, Yokota I, Kobayashi M, Yasuda K. Examination time as a quality indicator of screening upper gastrointestinal endoscopy for asymptomatic examinees. Dig Endosc 2017;29:569-575.
19. Bisschops R, Areia M, Coron E, Dobru D, Kaskas B, Kuvaev R, Pech O, Ragunath K, Weusten B, Familiari P, Domagk D, Valori R, Kaminski MF, Spada C, Bretthauer M, Bennett C, Senore C, Dinis-Ribeiro M, Rutter MD. Performance measures for upper gastrointestinal endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2016;48:843-864.
20. Yao K, Nagahama T, Matsui T, Iwashita A. Detection and characterization of early gastric cancer for curative endoscopic submucosal dissection. Dig Endosc 2013;25 Suppl 1:44-54.
21. Lee SW. Diagnosis and management of gastric polyps. Korean J Med 2016;90:307-312.
22. Shim KN. Endoscopic finding of early gastric cancer. Korean J Gastrointest Endosc 2007;34 Suppl 1:254-257.
23. Jee SR. Differential diagnosis of benign and malignant gastric ulcer. Korean J Gastrointest Endosc 2010;42:79-82.
26. Noh CK, Jung MW, Shin SJ, Ahn JY, Cho HJ, Yang MJ, Kim SS, Lim SG, Lee D, Kim YB, Cheong JY, Lee KM, Yoo BM, Lee KJ. Analysis of endoscopic features for histologic discrepancies between biopsy and endoscopic submucosal dissection in gastric neoplasms: 10-year results. Dig Liver Dis 2019;51:79-85.
29. Honmyo U, Misumi A, Murakami A, Mizumoto S, Yoshinaka I, Maeda M, Yamamoto S, Shimada S. Mechanisms producing color change in flat early gastric cancers. Endoscopy 1997;29:366-371.
31. Sano T, Okuyama Y, Kobori O, Shimizu T, Morioka Y. Early gastric cancer. Endoscopic diagnosis of depth of invasion. Dig Dis Sci 1990;35:1340-1344.
32. Kim SJ, Park BS, Choi CW, Kim HW, Kang DH, Park SB. Endoscopic features of submucosal invasion in undifferentiated -type early gastric cancer less than 20 mm in size without ulceration. Korean J Helicobacter Up Gastrointest Res 2021;21:127-134.
34. Ono H, Yoshida S. Endoscopic diagnosis of the depth of cancer invasion for gastric cancer. Stomach Intest 2001;36:334-340.
35. Nagahama T, Yao K, Maki S, Yasaka M, Takaki Y, Matsui T, Tanabe H, Iwashita A, Ota A. Usefulness of magnifying endoscopy with narrow-band imaging for determining the horizontal extent of early gastric cancer when there is an unclear margin by chromoendoscopy (with video). Gastrointest Endosc 2011;74:1259-1267.
36. Okabayashi T, Gotoda T, Kondo H, Ono H, Oda I, Fujishiro M, Yachida S. Usefulness of indigo carmine chromoendoscopy and endoscopic clipping for accurate preoperative assessment of proximal gastric cancer. Endoscopy 2000;32:S62.
38. Park JH, Lee JH, Lim YJ, Rhee PL, Kim JJ, Paik SW, Rhee JC, Park CK. Is chromoendoscopy with indigocarmine useful for detecting additional lesions in patients referred for endoscopic resection of gastric adenoma or cancer? Korean J Gastrointest Endosc 2005;30:1-6.
39. Asada-Hirayama I, Kodashima S, Sakaguchi Y, Ono S, Niimi K, Mochizuki S, Tsuji Y, Minatsuki C, Shichijo S, Matsuzaka K, Ushiku T, Fukayama M, Yamamichi N, Fujishiro M, Koike K. Magnifying endoscopy with narrow-band imaging is more accurate for determination of horizontal extent of early gastric cancers than chromoendoscopy. Endosc Int Open 2016;4:E690-E698.
40. Nagahama T, Yao K, Uedo N, Doyama H, Ueo T, Uchita K, Ishikawa H, Kanesaka T, Takeda Y, Wada K, Imamura K, Arima H, Shimokawa T. Delineation of the extent of early gastric cancer by magnifying narrow-band imaging and chromoendoscopy: a multicenter randomized controlled trial. Endoscopy 2018;50:566-576.
41. Iizuka T, Kikuchi D, Hoteya S, Yahagi N. The acetic acid + indigocarmine method in the delineation of gastric cancer. J Gastroenterol Hepatol 2008;23:1358-1361.
42. Guelrud M, Herrera I. Acetic acid improves identification of remnant islands of Barrett’s epithelium after endoscopic therapy. Gastrointest Endosc 1998;47:512-515.
43. Sakai Y, Eto R, Kasanuki J, Kondo F, Kato K, Arai M, Suzuki T, Kobayashi M, Matsumura T, Bekku D, Ito K, Nakamoto S, Tanaka T, Yokosuka O. Chromoendoscopy with indigo carmine dye added to acetic acid in the diagnosis of gastric neoplasia: a prospective comparative study. Gastrointest Endosc 2008;68:635-641.
46. Kiyotoki S, Nishikawa J, Satake M, Fukagawa Y, Shirai Y, Hamabe K, Saito M, Okamoto T, Sakaida I. Usefulness of magnifying endoscopy with narrow-band imaging for determining gastric tumor margin. J Gastroenterol Hepatol 2010;25:1636-1641.
47. Horiuchi Y, Fujisaki J, Yamamoto N, Shimizu T, Miyamoto Y, Tomida H, Omae M, Ishiyama A, Yoshio T, Hirasawa T, Yamamoto Y, Tsuchida T, Igarashi M, Takahashi H. Accuracy of diagnostic demarcation of undifferentiated-type early gastric cancers for magnifying endoscopy with narrow-band imaging: endoscopic submucosal dissection cases. Gastric Cancer 2016;19:515-523.
48. Okada K, Fujisaki J, Kasuga A, Omae M, Hirasawa T, Ishiyama A, Inamori M, Chino A, Yamamoto Y, Tsuchida T, Nakajima A, Hoshino E, Igarashi M. Diagnosis of undifferentiated type early gastric cancers by magnification endoscopy with narrow-band imaging. J Gastroenterol Hepatol 2011;26:1262-1269.