title: Photochemotherapy and risk of skin cancer.
mesh_terms: D006801:Humans; D008730:Methoxsalen / Q000008:administration & dosage / Q000009:adverse effects*; D010778:Photochemotherapy / Q000009:adverse effects*; D011565:Psoriasis / Q000188:drug therapy*; D012878:Skin Neoplasms / Q000209:etiology*
chemical_list: D008730:Methoxsalen