1. Department of Veterinary Pathology, College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
2. Department of Biomedical Science, Jungwon University, Chungbuk, Korea
3. Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, Chungbuk, Korea
4. Department of Pathology, Chonnam National University Medical School, Gwangju, Korea
5. Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA