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Protein intake can not be estimated from urinary urea excretion.
Kist-van Holthe tot Echten JE, Nauta J, Hop WC, de Jong MC, van Luijk WH, Ploos van Amstel SL, Roodhooft AM, Noordzij CM, Wolff ED. Kist-van Holthe tot Echten JE, et al. Among authors: noordzij cm. Pediatr Nephrol. 1992 Jan;6(1):85-7. doi: 10.1007/BF00856848. Pediatr Nephrol. 1992. PMID: 1536748
Protein restriction in chronic renal failure.
Kist-van Holthe tot Echten JE, Nauta J, Hop WC, de Jong MC, Reitsma-Bierens WC, Ploos van Amstel SL, van Acker KJ, Noordzij CM, Wolff ED. Kist-van Holthe tot Echten JE, et al. Among authors: noordzij cm. Arch Dis Child. 1993 Mar;68(3):371-5. doi: 10.1136/adc.68.3.371. Arch Dis Child. 1993. PMID: 8466240 Free PMC article. Clinical Trial.