1. Department of Veterinary Internal Medicine and Institute of Veterinary Science, College of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Korea
2. Department of Veterinary Diagnostic Imaging, College of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Korea
3. Department of Emergency and Critical Care Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Korea