1. Division of Diagnostic Imaging; Vetsuisse Faculty University of Zurich; Winterthurerstrasse 260; 8057 Zurich; Switzerland
2. Institute of Parasitology; Vetsuisse Faculty University of Zurich; Winterthurerstrasse 260; 8057 Zurich; Switzerland
3. Section of Anaesthesiology; Vetsuisse Faculty University of Zurich; Winterthurerstrasse 260; 8057 Zurich; Switzerland
4. Faculty of Veterinary Science, University of Sydney; NSW 2006; Australia
5. Division of Cardiology; Vetsuisse Faculty University of Zurich; Winterthurerstrasse 260; 8057 Zurich; Switzerland