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. 2023 May 22;55(9):836–846. doi: 10.1055/a-2038-0541

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The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 2 — Violin plots comparing the surveillance data of patients who progressed to advanced lesions versus those who did not progress ( P values for Mann–Whitney U test), with results provided for: a number of surveillance examinations; b mean surveillance interval between examinations for each patients; c pouch age at first surveillance; d pouch age at last surveillance; e patient age at first surveillance; f patient age at last surveillance.