title: Letter: Idiopathic orthostatic hypotension.
mesh_terms: D005438:Fludrocortisone / Q000627:therapeutic use*; D006801:Humans; D007024:Hypotension, Orthostatic / Q000188:drug therapy*; D011312:Pressure; D012965:Sodium Chloride / Q000627:therapeutic use*
chemical_list: D012965:Sodium Chloride; D005438:Fludrocortisone