1. Department of Anatomy, Physiology and Biochemistry Faculty of Veterinary Medicine and Animal Science Swedish University of Agricultural Sciences Uppsala Sweden
2. Department of Large Animal Clinical Sciences College of Veterinary MedicineMichigan State University East Lansing MI USA
3. Department of Equine Sciences Faculty of Veterinary Medicine Utrecht University Utrecht the Netherlands
4. Equine Department University of Zurich Zurich Switzerland
5. Department of Clinical Sciences Faculty of Veterinary Medicine and Animal Science Swedish University of Agricultural Sciences Uppsala Sweden