title: Mechanisms of circulatory dysfunction in orthostatic hypotension.
mesh_terms: D001775:Blood Circulation; D001783:Blood Flow Velocity; D006801:Humans; D007024:Hypotension, Orthostatic / Q000503:physiopathology*; D007053:Ice; D009638:Norepinephrine / Q000494:pharmacology; D013577:Syndrome; D014439:Tyramine / Q000494:pharmacology; D014636:Valsalva Maneuver; D014666:Vasomotor System / Q000503:physiopathology*
chemical_list: D007053:Ice; D009638:Norepinephrine; D014439:Tyramine