title: Reexamination of field-directed therapy for actinic keratosis.
authors.forename: Ted
authors.initials: T
authors.lastname: Rosen
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000209:etiology / Q000517:prevention & control*; D018450:Disease Progression; D006801:Humans; D055623:Keratosis, Actinic / Q000150:complications / Q000473:pathology / Q000628:therapy*; D012878:Skin Neoplasms / Q000209:etiology / Q000517:prevention & control*