What you need to know about ... actinic keratosis.
D003937:Diagnosis, Differential; D006801:Humans; D007642:Keratosis / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D011230:Precancerous Conditions / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D011322:Primary Prevention; D014466:Ultraviolet Rays / Q000009:adverse effects*