Natalini, Cláudio Corrêa, Alexandre da Silva Polidoro, and Nadia Crosignani. “Antinociceptive Effects of Epidural Tramadol Administration in Dogs As an Anlagesic for Experimental Stifle Surgery”. Acta Scientiae Veterinariae 35, no. 2 (March 30, 2018): 189–195. Accessed February 2, 2023. https://seer.ufrgs.br/index.php/ActaScientiaeVeterinariae/article/view/15969.