1. Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA 24061, USA
2. Pet Urgent Response and Emergency, Jacksonville, FL 32256, USA
3. Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
4. Department of Veterinary Clinical Sciences, The Ohio State University-College of Veterinary Medicine, Columbus, OH 43210, USA