Regulation of fluid and electrolyte balance in aged persons.
D000368:Aged / Q000502:physiology; D000375:Aging; D001826:Body Fluids; D004573:Electrolytes / Q000378:metabolism*; D006801:Humans; D007668:Kidney / Q000502:physiology*; D014882:Water-Electrolyte Balance
D004573:Electrolytes
AGED/physiology; BODY FLUIDS; ELECTROLYTES/metabolism; KIDNEYS/physiology