Garcês, Andreia, Isabel Pires, Nuno Alvura, Adelina Gama, Anabela Alves, Filipe Silva, and Paula Rodrigues. “Volvulus in a 20 Years Old Captive Hippopotamus (Hippopotamus Amphibius, Linnaeus, 1758)”. Journal of Advanced Veterinary Research 10, no. 4 (October 8, 2020): 261-262. Accessed December 1, 2024. https://www.advetresearch.com/index.php/AVR/article/view/529.