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. 2020 May 7;20(1):803–809. doi: 10.3892/ol.2020.11594

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Copyright: © Lin et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 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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Figure 3. — Kaplan-Meier survival plots for patients with hypopharyngeal squamous cell carcinoma. Survival plots show (A) locoregional control rate, (B) distant metastasis-free probability, (C) disease-free survival rate and (D) overall survival rate according to collagen type I α 2 staining results. E/N indicates the number of events/total number of patients. The number of events refers to the number of the cases having locoregional relapse (A), distant metastasis (B), locoregional relapse/distant metastasis/death (C), and death (D), respectively.