Urinary creatinine excretion as an index of the copleteness of 24-hour urine collections.
D000328:Adult; D000368:Aged; D002940:Circadian Rhythm; D003404:Creatinine / Q000652:urine*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013048:Specimen Handling; D014556:Urine
D003404:Creatinine