Notomi, Marcia Kikuyo, et al. “Retrospective Study of Chronic Renal Failure Cases in Dogs Between 1999 a 2002”. Brazilian Journal of Veterinary Research and Animal Science, vol. 43, no. supl., Dec. 2006, pp. 12-22, https://doi.org/10.11606/issn.1678-4456.bjvras.2006.26530.