Affiliation: | 1. Department for Small Animals, Division of Surgery, Section of Neurology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland;2. Section of Epidemiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland;3. Department for Small Animals, Division of Radiation Oncology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland |