Blood vitamin levels in dogs with chronic kidney disease.
Veterinary journal (London, England : 1997) · 2012
View sourceRetinol and retinyl ester responses in the blood plasma and urine of dogs after a single oral dose of vitamin A.
The Journal of nutrition · 2002
View sourceLevels of retinol and retinyl esters in plasma and urine of dogs with urolithiasis.
Journal of veterinary medicine. A, Physiology, pathology, clinical medicine · 2003
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