Personal habits.
D000293:Adolescent; D000328:Adult; D000818:Animals; D002417:Cattle; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008019:Life Style; D008175:Lung Neoplasms / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000209:etiology*; D009747:Nutritional Physiological Phenomena; D012907:Smoking