Oliveira KDS de, Henrique FV, Felipe G da C, Medeiros LKG de, Rego RO do, Alves AP, et al. Preoperative epidural administration of lidocaine-methadone or lidocaine-fentanyl in female dogs undergoing elective ovariohysterectomy. Semina: Ciênc. Agrár. [Internet]. 2017 Jun. 13 [cited 2026 Apr. 24];38(3):1303-12. Available from: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/22084