title: Risk of carcinogenicity in patients with psoriasis treated with methotrexate or PUVA singly or in combination.
mesh_terms: D006801:Humans; D008727:Methotrexate / Q000009:adverse effects*; D009381:Neoplasms, Radiation-Induced / Q000209:etiology; D011701:PUVA Therapy / Q000009:adverse effects*; D010778:Photochemotherapy / Q000009:adverse effects*; D011565:Psoriasis / Q000188:drug therapy*; D012306:Risk; D012878:Skin Neoplasms / Q000139:chemically induced*
chemical_list: D008727:Methotrexate