J. C. Ko, Fox, S. M., and Mandsager, R. E.,
“Sedative and cardiorespiratory effects of medetomidine, medetomidine-butorphanol, and medetomidine-ketamine in dogs.”,
Journal of the American Veterinary Medical Association, vol. 216, no. 10, pp. 1578-83, 2000.
J. C. Ko, Fox, S. M., and Mandsager, R. E.,
“Anesthetic effects of ketamine or isoflurane induction prior to isoflurane anesthesia in medetomidine-premedicated dogs.”,
Journal of the American Animal Hospital Association, vol. 37, no. 5, pp. 411-9, 2001.