The need for opioid in the postoperative analgesia of dogs undergoing hemilaminectomy due to intervertebral disc extrusion
Ferrarin, Dênis A.; Schwab, Marcelo L.; Wrzesinski, Mathias R.; Ripplinger, Angel; Rauber, Júlia S.; Santos, Anne G.C.; Aiello, Graciane; Mazzanti, Alexandre.