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. 2016 Dec 28;20(Suppl 1):28–38. doi: 10.1007/s10120-016-0680-7

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 10a–d — Examples of the GUP system and its criteria for characterization by conventional white-light endoscopy (polypoid lesion). a Hyperplastic polyp 1. b Fundic gland polyp. c Early gastric cancer of protruded type (0 I). d Early gastric cancer of protruded type (0 I)