1. Department of Population Medicine and Diagnostic Sciences, Section of Anatomic Pathology, College of Veterinary Medicine, Cornell University, Ithaca, NY
2. World Organisation for Animal Health Collaborating Centre for the Health of Marine Mammals, Italian National Reference Centre for Diagnostic Activities in Stranded Marine Mammals (C.Re.Di.Ma), Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Torino, Italy
3. Departament de Medicina i Cirurgía Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain
4. Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona, Bellaterra, Spain
5. VISAVET Health Surveillance Centre, Complutense University of Madrid, Madrid, Spain
6. Department of Animal Health, Faculty of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain
7. Veterinary Department, Mundomar, Benidorm, Spain
8. Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Italy
9. Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Foggia, Italy
10. Unitat Mixta d’investigació IRTA-UAB en Sanitat Animal, Centre de Recerca en Sanitat Animal (CReSA), Universitat Autònoma de Barcelona, Bellaterra, Spain
11. Department of Internal Medicine and Animal Surgery, Faculty of Veterinary Medicine, Complutense University of Madrid, Madrid, Spain