title: Why does placebo improve severe limb ischaemia?
mesh_terms: D001794:Blood Pressure; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006801:Humans; D007511:Ischemia / Q000628:therapy*; D007552:Isotonic Solutions / Q000008:administration & dosage; D007866:Leg / Q000098:blood supply*; D010919:Placebos; D011897:Random Allocation; D012965:Sodium Chloride / Q000008:administration & dosage
chemical_list: D007552:Isotonic Solutions; D010919:Placebos; D012965:Sodium Chloride