title: Why does placebo improve severe limb ischaemia?
mesh_terms: D001785:Blood Gas Monitoring, Transcutaneous; D001794:Blood Pressure; D005121:Extremities / Q000098:blood supply*; D006801:Humans; D007511:Ischemia / Q000097:blood / Q000503:physiopathology*; D010919:Placebos
chemical_list: D010919:Placebos