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. 2021 Jul 5;13(13):3370. doi: 10.3390/cancers13133370

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Kaplan-Meier (KM) curves for tumor size (T), node status (N) and stage in HPV-positive HNSCC patients representing RFS and OS; KM representing (A) RFS and (B) OS for patients divided into tumor size: T (1–2) and T (3–4); KM representing (C) RFS and (D) OS for patients divided into node status: N0 and N+; KM representing (E) RFS and (F) OS for patients divided into stages I/II and III/IV; OS for patients divided into stages I/II and III/IV. Statistical significance was indicated as p < 0.05.