M. de Souza, M. V. de . Souza, I. A. . Pandolfi, R. M. dos . Santos, and D. . Paulino Junior, “Data collection and causes of euthanasia in dogs and cats: ethical-moral evaluation”, Pubvet, vol. 13, no. 11, Dec. 2019, doi: 10.31533/pubvet.v13n11a451.1-13.