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. 2022 Oct 26;14:3095–3103. doi: 10.2147/CMAR.S383787

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© 2022 Kuroda et al.

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Kaplan–Meier survival curve with 95% confidence interval. (A) Overall survival of patients with head and neck squamous cell carcinomas patients after pulmonary metastasectomy. Red line: oral cavity, tongue, and paranasal sinus with pathological maximum diameter (> 20 mm) (n = 36); green line; others (n = 195). (B) Overall survival of patients with head and neck squamous cell carcinomas patients after pulmonary metastasectomy. Red line: any head and neck sites excluding oral cavity, tongue, and paranasal sinus with a pathological maximum diameter (≤ 20 mm) (n = 88); green line: any head and neck sites excluding oral cavity, tongue, and paranasal sinus with a pathological maximum diameter (> 20 mm) (n = 74); blue line: oral cavity, tongue, and paranasal sinus (n = 69).