A tumor registry study of oral squamous carcinoma.
D000367:Age Factors; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007971:Leukoplakia; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000145:classification*; D009378:Neoplasms, Multiple Primary; D012737:Sex Factors; D012907:Smoking