title: The sick lip--actinic keratosis of the lower lip.
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000601:surgery*; D006801:Humans; D007642:Keratosis / Q000601:surgery*; D008048:Lip Neoplasms / Q000601:surgery*; D008297:Male; D014466:Ultraviolet Rays / Q000009:adverse effects*