Oliveira, Fabrício Singaretti de, Márcia Rita Fernandes Machado, and Júlio Carlos Canola. 2003. “Real Time B-Mode Ultrasound in Pacas Pregnancy (Agouti Paca, Linnaeus, 1766)”. Brazilian Journal of Veterinary Research and Animal Science 40 (1): 73-78. https://doi.org/10.1590/S1413-95962003000100009.