title: Urea and the concentrating defect of chronic renal failure in man.
mesh_terms: D000328:Adult; D004573:Electrolytes / Q000652:urine; D005919:Glomerular Filtration Rate; D006801:Humans; D007671:Kidney Concentrating Ability; D007676:Kidney Failure, Chronic / Q000503:physiopathology*; D008657:Metabolic Clearance Rate; D008875:Middle Aged; D009399:Nephrons / Q000503:physiopathology; D009994:Osmolar Concentration; D011704:Pyelonephritis / Q000378:metabolism; D012964:Sodium / Q000652:urine; D014508:Urea / Q000008:administration & dosage / Q000378:metabolism*
chemical_list: D004573:Electrolytes; D014508:Urea; D012964:Sodium