title: Dermatologists, university join in skin cancer study.
mesh_terms: D002986:Clinical Trials as Topic; D006801:Humans; D015474:Isotretinoin; D012878:Skin Neoplasms / Q000188:drug therapy / Q000517:prevention & control*; D014212:Tretinoin / Q000627:therapeutic use*; D014801:Vitamin A / Q000627:therapeutic use
chemical_list: D014801:Vitamin A; D014212:Tretinoin; D015474:Isotretinoin