@article{ruiz_peres_campos_sorte_ribeiro_2015, title={Effects of tramadol on tear production, intraocular pressure, and pupil
               size in dogs: clinical study}, volume={45}, ISSN={0103-8478}, url={https://doi.org/10.1590/0103-8478cr20140826}, DOI={10.1590/0103-8478cr20140826}, number={4}, journal={Ciência Rural}, publisher={Universidade Federal de Santa Maria}, author={Ruiz, Thaís and Peres, Thalita Priscila da Silva and Campos, Wilma Neres da Silva and Sorte, Eveline da Cruz Boa and Ribeiro, Alexandre Pinto}, year={2015}, month={Apr}, pages={724–729} }