Makra, Zita, Csereklye, Nóra, Matas, Marian, Mcmullen, Riera Richard, Veres-Nyéki, Kata, "Effects of intravenous flunixin meglumine, phenylbutazone, and acupuncture on ocular pain scores in the horse: a pilot study", Journal of Equine Veterinary Science, 2021