Affiliation: | 1. Department of Veterinary Surgery and Anaesthesiology, School of Veterinary Medicine and Animal Science, UNESP – Univ Estadual Paulista, , Botucatu, Brazil;2. Comparative Pain Research Laboratory & Small Animal Surgery, Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine, , Raleigh, NC, USA;3. Department of Biostatistics, Institute of Biosciences, UNESP – Univ Estadual Paulista, , Botucatu, Brazil |