1. Crawford, M.A. (1995) The urinary system. In: Hoskins, J.D. (ed.) Veterinary Pediatrics: Dog and Cats from Birth to Six Months , 2nd edn. W.B. Saunders, Philadelphia, Pennsylvania, pp. 271–292.
2. Qualitative urinalyses in puppies 0 to 24 weeks of age;Faulks R.D.;Journal of the American Animal Hospital Association,2003
3. Developmental aspects of fluid and electrolyte metabolism and renal function in neonates;Fettman M.J.;Compendium on Continuing Education for the Practicing Veterinarian (USA),1991
4. Gunn-Moore D. (2006) Techniques for neonatal resuscitation and critical care. In: World Small Animal Veterinary Association World Congress Proceedings (Prague) pp. 707–713.
5. Hoskins, J.D. (1995) Fluid therapy in the puppy and kitten. In: Kirk, R.W. (ed.) Current Veterinary Therapy XII , Vol. 1, 12th edn. W.B. Saunders, Philadelphia, Pennsylvania, pp. 34–37.