Institution: | 1. Department of Companion Animal Clinical Studies, University of Pretoria, , Pretoria, South Africa;2. Department of Small Animal Clinical Sciences, Faculty of Life Sciences, University of Copenhagen, , Copenhagen, Denmark;3. Department of Production Animal Studies, University of Pretoria, , Pretoria, South Africa;4. Department of Veterinary Tropical Disease, Faculty of Veterinary Science, University of Pretoria, , Pretoria, South Africa |