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. 2023 Jan 18;14:1103429. doi: 10.3389/fendo.2023.1103429

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Copyright © 2023 Hu, Ma, Zhang, Zhang, Huang and Li

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Identification of optimal cut-off values for year of diagnosis, age and tumor size via X-tile software analysis. (A, B) Optimal minimum and maximum cut-off value 2001 and 2005 for year of diagnosis and its survival curves. (C, D) Optimal minimum and maximum cut-off values 57 and 73 years for age and its survival curves. (E, F) Optimal minimum and maximum cut-off value 59 and 176 mm for tumor size and its survival curves.