Influence of continued smoking on the incidence of second primary cancers involving mouth, pharynx, and larynx.
D005500:Follow-Up Studies; D006801:Humans; D007822:Laryngeal Neoplasms; D007971:Leukoplakia; D009062:Mouth Neoplasms; D009364:Neoplasm Recurrence, Local / Q000453:epidemiology*; D009378:Neoplasms, Multiple Primary / Q000453:epidemiology*; D009381:Neoplasms, Radiation-Induced / Q000453:epidemiology*; D010610:Pharyngeal Neoplasms; D011230:Precancerous Conditions; D012907:Smoking