Affiliation: | 1. Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan, USA;2. Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA;3. Department of Animal Science, College of Agriculture and Natural Sciences, Michigan State University, East Lansing, Michigan, USA;4. Department of Biochemistry and Molecular Biology, College of Agriculture and Natural Sciences, Michigan State University, East Lansing, Michigan, USA |