title: [Comparison between the determination of excreted urea nitrogen and nitrogen balance of patients with chronic renal failure].
mesh_terms: D000328:Adult; D001806:Blood Urea Nitrogen; D005243:Feces / Q000032:analysis; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000652:urine*; D008297:Male; D008875:Middle Aged; D009584:Nitrogen / Q000032:analysis / Q000652:urine*; D014508:Urea / Q000652:urine
chemical_list: D014508:Urea; D009584:Nitrogen