title: New attack on precancerous patches.  58 million of us have actinic keratoses.  Now treatment is easier.
mesh_terms: D000279:Administration, Cutaneous; D003879:Dermatologic Agents / Q000627:therapeutic use*; D006266:Health Education; D006801:Humans; D055623:Keratosis, Actinic / Q000188:drug therapy*; D010778:Photochemotherapy / Q000379:methods*; D017319:Photosensitizing Agents / Q000627:therapeutic use*
chemical_list: D003879:Dermatologic Agents; D017319:Photosensitizing Agents