Letter: Postural hypertension in the elderly.
D000368:Aged; D006801:Humans; D007008:Hypokalemia / Q000150:complications; D007024:Hypotension, Orthostatic / Q000188:drug therapy*; D011188:Potassium / Q000627:therapeutic use; D012965:Sodium Chloride / Q000627:therapeutic use
D012965:Sodium Chloride; D011188:Potassium