title: The function of creatinine. II. Nocturnal-diurnal variation.
mesh_terms: D000328:Adult; D002940:Circadian Rhythm; D003404:Creatinine / Q000378:metabolism / Q000652:urine*; D004032:Diet; D006801:Humans; D008297:Male; D008832:Microchemistry; D008875:Middle Aged; D013997:Time Factors
chemical_list: D003404:Creatinine