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. 2023 May 9;149(11):8981–8991. doi: 10.1007/s00432-023-04834-8

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© The Author(s) 2023

Open AccessThis 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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Fig. 1 — Patient distribution based on portal vein tumor thrombosis (PVTT) in the entire cohort. From 458 patients received CTC detection, 316 patients were included in this study based on certain inclusion and exclusion criteria. 42 (13.3%) of them have PVTT, compared to 274 (86.7%) of the patients who do not have it. For further analysis, 41 pairs of matched patients were selected using the propensity score matching (PSM) model