1. Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, California.
2. Wildlife Department, Hoopa Tribal Forestry, Hoopa, California.
3. Virginia Department of Game and Inland Fisheries, Richmond, Virginia.
4. Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, California.
5. Department of Wildlife, Humboldt State University, Arcata, California.