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Survival rates were analyzed by the Kaplan-Meier method. Results Postoperatively 23 patients received radiotherapy and 13 patients received chemoradiotherapy. All patients were followed up for more than 3 years. Total 3-year and 5-year survival rates were 60.5% and 49.0%, respectively. Patients obtaining the conservation of laryngeal functions accounted for 44% (20/45) of all cases. The neck lymph node positive rate was 73.3%(33/45), and log-rank test demonstrated that cervical lymph node metastasis was significantly associated with prog