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. 2021 Sep 25;6(5):1228–1234. doi: 10.1002/lio2.667

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© 2021 The Authors. Laryngoscope Investigative Otolaryngology published by Wiley Periodicals LLC on behalf of The Triological Society.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Number of PGCCs in tissue sections of patients with laryngeal carcinoma. (A) (a) HE staining of normal epithelial tissues. (b) HE staining of PGCCs, indicated with the black arrow. Scale: 20 μm. (B) (a and b) PGCCs in tissue sections from patients with well‐differentiated laryngeal carcinoma. (c and d) PGCCs in tissue sections of patients with lowly differentiated laryngeal carcinoma. (C) (a) Relationship between total survival time and PGCC count in patients with laryngeal cancer from 2013 to 2020. (b) Relationship between 3‐year survival rate and lymph node metastasis in patients with laryngeal cancer from 2013 to 2016, P < .05