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. 2019 May 31;98(22):e15807. doi: 10.1097/MD.0000000000015807

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Copyright © 2019 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial License 4.0 (CCBY-NC), where it is permissible to download, share, remix, transform, and buildup the work provided it is properly cited. The work cannot be used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc/4.0

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The F-figure for ulcer staging ratio of 2 months after ESD in Groups A1, A2, B1, B2. There was significant difference in ulcer stage between Group A1 and Group A2 [stage H1: 1 vs 3 case (3.13% vs 17.65%), stage H2: 3 vs 4 case (9.38% vs 23.53%)] (P < .05), but there was a statistically significant difference in the stage S2 between Group A1 and Group A2 (P < .05). In Groups B1 and B2, it still had few patients in stage A1 (4.08%, 1.37%), A2 (2.04%, 4.11%). But Group A1 and Group A2 did not have patients in stage A. Group A1 had better stages than Group A2 (P = .036), Groups B1 (P = .046), and B2 (P = .039).