Affiliation: | 1. Department of Companion Animal Clinical Sciences, Section for Equine Medicine and Surgery, The Norwegian School of Veterinary Science, , Oslo, Norway;2. Department of Basic Sciences and Aquatic Medicine, The Norwegian School of Veterinary Science, , Oslo, Norway;3. Department of Animal and Agricultural Sciences, The Norwegian University of Life Sciences, , ?s, Norway;4. Norwegian Veterinary Institute, , Oslo, Norway |