1. Department of Small Animal Clinical Sciences (Levy, Snyder, Taveres, Hooks, Pegelow, Salute), College of Veterinary Medicine, University of Florida, Gainesville, Florida 32610 and the
2. Department of Veterinary Anatomy and Public Health (Slater, Hughes), College of Veterinary Medicine, Texas A&M University, College Station, Texas 77843
3. From the