Dynamic analysis of the increasing frequency of laryngeal cancer.
D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology*; D002681:China; D005260:Female; D005931:Glottis; D006801:Humans; D007822:Laryngeal Neoplasms / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D012907:Smoking