Affiliation: | 1. U.S. Geological Survey, National Wildlife Health Center, 6006 Schroeder Road, Madison, WI, 53711 USA;2. U.S. Geological Survey, Northern Rocky Mountain Science Center, 2327 University Way, Suite 2, Bozeman, MT, 59715 USA;3. Montana Fish, Wildlife and Parks, 1420 E. 6th Avenue, Helena, MT, 59601 USA |