Kidney function and disease in the elderly.
D000375:Aging / Q000502:physiology*; D000818:Animals; D003681:Dehydration / Q000503:physiopathology; D005919:Glomerular Filtration Rate; D006801:Humans; D007668:Kidney / Q000503:physiopathology*; D007674:Kidney Diseases / Q000503:physiopathology*; D012079:Renal Circulation