1. Department Animal Medicine, Surgery and Pathology, Complutense University of Madrid, Madrid, Spain
2. Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
3. Laboratory of Pathology and Toxicology, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, PA, USA
4. LUNAM University, Oniris, AMaROC Unit, Nantes, France
5. Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia (BO), Italy
6. Department of Comparative Biomedicine and Food Science, University of Padua, Padua, Italy
7. Institute of Pathology and Molecular Immunology of the University of Porto (IPATIMUP) and Institute of Biomedical Science Abel Salazar, University of Porto (ICBAS-UP), Porto, Portugal
8. Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
9. Diagnostic Center for Population and Animal Health, Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, USA
10. Department of Comparative Pathology, University of Córdoba, Córdoba, Spain
11. Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA
12. Department of Veterinary Sciences, University of Pisa, Pisa, Italy