Oliveira-Barros, L.M. and Matera, J.M. 2009. Retrospective study of canine intussusception. Brazilian Journal of Veterinary Research and Animal Science. 46, 5 (Oct. 2009), 370–377. DOI:https://doi.org/10.11606/issn.1678-4456.bjvras.2009.26786.