1. Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA
2. Eye Care for Animals, Chicago, IL
3. VCA Great Lakes Veterinary Specialists, Warrensville Heights, OH
4. Memphis Veterinary Specialists & Emergency, Cordova, TN
5. Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS
6. Lumbry Park Veterinary Specialists, Hampshire, UK
7. Dick White Referrals, Cambridgeshire, UK