Ingrid Mayara Cavalcante Trevisan, Sabrina Carvalho Brunelli, Rafael Cuconati, Valquíria Aparecida Matheus, Liana Verinaud, Catarina Rapôso. Establishing primary tumor cell lines in dogs: Challenges and Ki-67 correlation. Brazilian Journal of Veterinary Pathology. 2026;19:e019004. doi:10.24070/bjvp.1983-0246.019004