1. Washington Department of Fish and Wildlife, Marine Mammal Investigations, 7801 Phillips Road SW, Lakewood, Washington 98498, USA
2. Makah Fisheries Management, PO Box 115, Neah Bay, Washington 98357, USA
3. Animal Health Centre, British Columbia Ministry of Agriculture and Food, 1767 Angus Campbell Road, Abbotsford, British Columbia V3G 2M3, Canada
4. The SeaDoc Society, University of California–Davis Wildlife Health Center, Orcas Island Office, 942 Deer Harbor Road, Eastsound, Washington 98245, USA