The distribution of vitamin A and retinol-binding protein in the blood plasma, urine, liver and kidneys of carnivores Jens Raila, Ingeborg Buchholz, Heike Aupperle, Gerit Raila, Heinz-Adolf Schoon and Florian J. Schweigert Vet. Res., 31 6 (2000) 541-551 DOI: 10.1051/vetres:2000138