1. Department of Clinical Sciences; Faculty of Veterinary Medicine and Animal Science; Swedish University of Agricultural Sciences; Uppsala Sweden
2. Department of Anatomy, Physiology and Biochemistry; Faculty of Veterinary Medicine and Animal Science; Swedish University of Agricultural Sciences; Uppsala Sweden
3. University Animal Hospital; University of Agricultural Sciences; Uppsala Sweden
4. Department of Clinical Studies; School of Veterinary Medicine; University of Pennsylvania; Philadelphia PA
5. Albano Animal Hospital; Danderyd Sweden