1. Institute of Pathology, Wild Animals, Fish and Bees, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, Ljubljana, 1000, Slovenia
2. Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, 75007, Sweden
3. AnaPath Services GmbH, Hammerstrasse 49, Liestal, 4410, Switzerland