Gramulia, Bianca C., Lidia H. Pulz, Emerson F. F. Mota, Heidge Fukumasu, and Ricardo F. Strefezzi. 2016. “Matrix Metalloproteinase 9 Expression in Canine Mammary Carcinomas”. Brazilian Journal of Veterinary Pathology 9 (2): 55-61. https://bjvp.org.br/bjvp/article/view/215.