1. Institutes of Animal Neurology, Inselspital, University of Berne, Berne, Switzerland
2. *Animal Breeding, Inselspital, University of Berne, Berne, Switzerland
3. †Clinic for Animal Neurology, Brno, Tschechien, Inselspital, University of Berne, Berne, Switzerland
4. ‡Department of Visceral and Transplantation Surgery, Inselspital, University of Berne, Berne, Switzerland