Oliveira, J.C.D. et al. 1999. Liver: collateral vascularization following induced ischemia by crossed clamping of the thoracic aorta. Brazilian Journal of Veterinary Research and Animal Science. 36, 5 (Jan. 1999), 231–235. DOI:https://doi.org/10.1590/S1413-95961999000500001.