Kogika, M. M., Matsuura, S., Hagiwara, M. K., Mirandola, R. M. S., & Ortolani, E. L. (1999). Evaluation of preprandial and postprandial serum bile acids and plasma ammonia concentrations in healthy dogs, and the effects of frozen storage on plasma ammonia concentrations. Brazilian Journal of Veterinary Research and Animal Science, 36(1), 28-33. https://doi.org/10.1590/S1413-95961999000100005