title: Diurnal variations of hydroxyproline and creatinine excretion in children.
mesh_terms: D002664:Child Nutritional Physiological Phenomena; D002675:Child, Preschool; D002940:Circadian Rhythm; D003404:Creatinine / Q000652:urine*; D004044:Dietary Proteins; D005260:Female; D006801:Humans; D006909:Hydroxyproline / Q000652:urine*; D008297:Male; D013048:Specimen Handling; D013997:Time Factors
chemical_list: D004044:Dietary Proteins; D003404:Creatinine; D006909:Hydroxyproline