title: Photochemotherapy of psoriasis: risk:benefit ratios.
mesh_terms: D003033:Coal Tar / Q000009:adverse effects; D006801:Humans; D008730:Methoxsalen / Q000009:adverse effects; D011701:PUVA Therapy / Q000009:adverse effects; D010778:Photochemotherapy / Q000009:adverse effects*; D011565:Psoriasis / Q000188:drug therapy*; D012306:Risk
chemical_list: D003033:Coal Tar; D008730:Methoxsalen