1. Department of Veterinary Medicine and Epidemiology, University of California, Davis, California
2. Department of Small Animal Clinical Sciences, University of Florida, Gainesville, Florida
3. Department of Medicine, University of Washington, Seattle, Washington
4. Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, California
5. Department of Nutrition, School of Veterinary Medicine, University of California, Davis, California