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. 2020 Jul 28;36(2):482–489. doi: 10.1111/jgh.15190

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© 2020 The Authors. Journal of Gastroenterology and Hepatology published by Journal of Gastroenterology and Hepatology Foundation and John Wiley & Sons Australia, Ltd

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Educational endoscopic images used for the CNN. (a) Differentiated‐type cancer (0‐IIc, tub1), (b) differentiated‐type cancer (0‐IIc, tub2), (c) differentiated‐type cancer (0‐IIa, tub1), (d–f) fundic gland mucosa, (g–i) pyloric gland mucosa, (j, k) patchy redness, (l) adenoma, (m) xanthoma, (n) focal atrophy, and (o) ulcer scar. 0‐IIa, flatly elevated; 0‐IIc, flatly depressed; CNN, convolution neural network; tub1, well differentiated adenocarcinoma; tub2, moderately differentiated adenocarcinoma.