Moreno, K. and Bracarense, A.P.F.R.L. (2007) “Retrospective study of canine lymphoma in period 1990 - 2004, north region the of Paraná”, Brazilian Journal of Veterinary Research and Animal Science, 44(supl.), pp. 46–52. doi:10.11606/issn.1678-4456.bjvras.2007.26589.