1. Department of Veterinary Clinical and Diagnostic Sciences, Faculty of Veterinary Medicine University of Calgary 2500 University Drive NW Calgary Alberta T2N1N4 Canada
2. Moore Equine Veterinary Centre 260048A Writing Creek Crescent Rocky View County Alberta T4A0M9 Canada
3. Department of Large Animal Surgery, Anaesthesia and Orthopaedics Ghent University Salisburylaan 133 Merelbeke 9820 Belgium