1. University of Washington, 1410 NE Campus Pkwy, Seattle, WA 98195 USA
2. University of Minnesota College of Veterinary Medicine, Department of Veterinary Population Medicine,1365 Gortner Avenue, St Paul, MN 55108 USA
3. Dean Emeritus of the University of Minnesota College of Veterinary Medicine, Professor Emeritus Department of Veterinary Population Medicine, 1365 Gortner Avenue, St Paul, MN 55108 USA
4. University of Minnesota College of Veterinary Medicine, Department of Veterinary Population Medicine, 1365 Gortner Avenue, St Paul, MN 55108 USA
5. Washington University in St Louis, 1 Brookings Dr, St. Louis, MO 63130 USA
6. Public Health and Infectious Disease Epidemiology at the University of Tennessee College of Veterinary Medicine, 2407 River Drive, Knoxville, TN 37996 USA
7. Veterinary Population Medicine, University of Minnesota College of Veterinary Medicine, 1365 Gortner Avenue, St Paul, MN 55108 USA
8. Department of Veterinary Population Medicine, 1365 Gortner Avenue, St Paul, MN 55108 USA
9. Department of Veterinary Population Medicine, University of Minnesota College of Veterinary Medicine, 1365 Gortner Avenue, St Paul, MN 55108 USA
10. The Marine Mammal Center, 2000 Bunker Road, Fort Cronkhite, Sausalito, CA 94965 USA
11. Department of Veterinary Population Medicine, University of Minnesota College of Veterinary Medicine, 1920 Fitch Avenue, St Paul, MN 55108 USA
12. Universidad de Oviedo, Faculty of Medicine and Health Sciences, Av. Julián Clavería 6, Oviedo, Asturias 33006 Spain