1. 1. Department of Small Animal Clinical Sciences, Zoological Medicine Service, University of Florida, College of Veterinary Medicine, Box 100125, Gainesville, FL, 32610, USA
2. 2. Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
3. 3. Food Animal Health and Management Center, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA