1 Comparative Ophthalmology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO.
2 Avian, Exotic, and Zoological Medicine, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO.
3 Veterinary Diagnostic Laboratory, Department of Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO.
4 Department of Clinical Sciences, College of Veterinary Medicine, Tufts University, North Grafton, MA.
5 Comparative Ocular Pathology Laboratory of Wisconsin, Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI.