title: Ultraviolet therapy of psoriasis: a critical study.
mesh_terms: D002986:Clinical Trials as Topic; D003033:Coal Tar / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D009824:Ointments; D011565:Psoriasis / Q000188:drug therapy / Q000628:therapy*; D014467:Ultraviolet Therapy
chemical_list: D009824:Ointments; D003033:Coal Tar