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. 2023 Apr 6;23:324. doi: 10.1186/s12885-023-10775-9

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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/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 1 — Prognostic significance of HPV infection status in 111 advanced HPSCC patients Kaplan-Meier estimates of (A) OS and (B) RFS among the 18 HPV(+) HPSCC patients (of whom 2 died) and the 93 HPV(-) HPSCC patients (of whom36 died). The mean OS and RFS among HPV(+) patients were 41.06 and 39.78 years, as compared with 40.81 and 36.89 years among HPV(-) patients. p=0.0741 for OS, p=0.0353 for RFS (Log-rank test)