1. Minnesota Department of Natural Resources, 5463 C West Broadway Ave., Forest Lake, Minnesota 55025, USA;
2. US Department of Agriculture, Animal Plant Health Inspection Service – Wildlife Services, 3503 Old Highway 99 South, Roseburg, Oregon 97471, USA;
3. US Geological Survey, National Wildlife Health Center, 6006 Schroeder Rd., Madison, Wisconsin 53711, USA;
4. Minnesota Department of Natural Resources, 500 Lafayette Rd., St. Paul, Minnesota 55155, USA;