SWANSON, C. The effect of premedication with butorphanol or methadone on the ease of duodenal intubation. Veterinary Evidence, [S. l.], v. 10, n. 3, 2025. DOI: 10.18849/ve.v10i3.715. Disponível em: https://veterinaryevidence.org/index.php/ve/article/view/715. Acesso em: 5 sep. 2025.