1. Department of Fishery and Wildlife Biology, Colorado State University, P.O. Box 1522, Fort Collins, Colorado 80522, USA
2. Wildlife Pharmaceuticals, Inc., 1401 Duff Drive, Suite 600, Fort Collins, Colorado 80524, USA
3. National Marine Fisheries Service, Southwest Fisheries Science Center, Honolulu Laboratory, 2570 Dole Street, Honolulu, Hawaii 96822-2396, USA
4. Diagnostic Laboratory, College of Veterinary Medicine, Colorado State University, Fort Collins, Colorado 80523, USA