title: From sunlight to actinic keratosis to squamous cell carcinoma.
authors.affiliation: Department of Dermatology, University of California San Francisco. bruceacohn@aol.com
authors.forename: B A
authors.initials: BA
authors.lastname: Cohn
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000209:etiology* / Q000517:prevention & control; D006801:Humans; D007642:Keratosis / Q000209:etiology / Q000628:therapy*; D009381:Neoplasms, Radiation-Induced; D011230:Precancerous Conditions / Q000628:therapy*; D012878:Skin Neoplasms / Q000209:etiology* / Q000517:prevention & control; D013472:Sunlight / Q000009:adverse effects*