title: Vitamin A and interferon effective against skin cancer.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000628:therapy*; D003131:Combined Modality Therapy; D004341:Drug Evaluation; D006801:Humans; D016898:Interferon-alpha / Q000627:therapeutic use*; D015474:Isotretinoin / Q000627:therapeutic use*; D008875:Middle Aged; D012878:Skin Neoplasms / Q000628:therapy*
chemical_list: D016898:Interferon-alpha; D015474:Isotretinoin