1. Department of Surgical and Radiological Sciences, University of California, Davis, California.
2. Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, California.
3. Veterinary Medical Teaching Hospital, University of California, Davis, California.
4. Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, California.
5. Center for Molecular and Genomic Imaging, University of California, Davis, California.
6. Department of Ophthalmology and Vision Science, School of Medicine. University of California, Davis, California.