1. Departments of Pathology, Microbiology, and Immunology of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, CA
2. Departments of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California-Davis, Davis, CA
3. Department of Pathology, School of Medicine, University of California-San Francisco, San Francisco, CA