Guilhen, Rafael Costa, et al. “A Comparison of Detomidine in Combination With Saline, Morphine or Methadone in Horses Submitted to Experimental Oral Stimuli”. Semina: Ciências Agrárias, vol. 36, no. 6Supl2, Dec. 2015, pp. 4225-36, doi:10.5433/1679-0359.2015v36n6Supl2p4225.