The Sheep Grimace Scale as an indicator of post-operative distress and pain in laboratory sheep.
Häger C, Biernot S, Buettner M, Glage S, Keubler LM, Held N, Bleich EM, Otto K, Müller CW, Decker S, Talbot SR, Bleich A.
Häger C, et al. Among authors: bleich em.
PLoS One. 2017 Apr 19;12(4):e0175839. doi: 10.1371/journal.pone.0175839. eCollection 2017.
PLoS One. 2017.
PMID: 28422994
Free PMC article.