Assessment of the nociceptive withdrawal reflex in healthy, non-medicated experimental sheepRohrbach, H.Wieling, R.Spadavecchia, C.Author informationAnaesthesiology Section, Department of Veterinary Sciences, Vetsuisse Faculty, University of Bern, Bern, SwitzerlandVeterinary Anaesthesia and Analgesia 38(2):p 20, March 2011.Copyright © 2011 John Wiley & Sons, Inc.