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laryngeal carcinoma

Laryngeal carcinoma (carcinoma of larynx) is a common malignant tumor, its incidence rate is about 1 ~ 5% of the whole body tumors, and it ranks third only to nasopharyngeal carcinoma and nasal cavity and paranasal sinus carcinoma in otolaryngology. The prone age is 50 ~ 70 years old. Males are more common than females, about 8: 1, with the highest incidence in Northeast China, North China and East China. Its etiology...

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