Institution: | 1. Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa;2. Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, New York;3. Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, Iowa;4. Department of Statistics, College of Veterinary Medicine, Iowa State University, Ames, Iowa |