2001 journal article
Pharmacokinetics and adverse effects of butorphanol administered by single intravenous injection or continuous intravenous infusion in horses
American Journal of Veterinary Research, 62(2), 183–189.
By: D. Sellon, V. Monroe, M. Roberts & M. Papich
1999 journal article
Increased interleukin-6 activity in the serum of ponies acutely infected with equine infectious anaemia virus
Research in Veterinary Science, 66(1), 77–80.
By: D. Sellon, K. Russell, V. Monroe & K. Walker