What about age related decline in renal function?
Glen D
GD
Burgoyne
D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D005919:Glomerular Filtration Rate / Q000502:physiology*; D006304:Health Status; D006801:Humans; D007668:Kidney / Q000503:physiopathology*; D051437:Renal Insufficiency / Q000503:physiopathology*; D014553:Urinary Tract Physiological Phenomena