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. 2024 Feb 1;14:2711. doi: 10.1038/s41598-024-53245-3

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Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Kaplan–Meier survival curves for histological subtypes (adenocarcinoma, n = 88 vs squamous cell carcinoma, n = 49) based on number of resected lymph nodes (LN) in pN0 oesophageal cancer (17 or more LNs versus less than 17 LNs). (a) Adenocarcinoma—Overall survival (Log Rank, P = 0.322), (b) Adenocarcinoma—Disease Free survival (Log Rank, P = 0.622). (c) Squamous cell carcinoma—Overall survival (Log Rank, P = 0.047), (d) Squamous cell carcinoma—Disease Free survival (Log Rank, P = 0.013). Numbers below graphs indicate the number of patients at risk at each time point for the LN groups.