1. Department of Medical Imaging, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea.
2. Laboratory of Internal Medicine, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea.
3. Laboratory of Clinical Pathology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea.