Urinary glycosaminoglycans versus creatinine excretion: a used and abused parameter.
D002940:Circadian Rhythm; D003404:Creatinine / Q000652:urine*; D006025:Glycosaminoglycans / Q000652:urine*; D006801:Humans; D008297:Male; D008722:Methods; D013997:Time Factors
D006025:Glycosaminoglycans; D003404:Creatinine