1. Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea.
2. Department of Pathology, Hallym University College of Medicine, Chuncheon, Korea.
3. Department of Thoracic and Cardiovascular Surgery, Hallym University College of Medicine, Chuncheon, Korea.
4. Department of Pathology, Sungkyunkwan University School of Medicine, Seoul, Korea.
5. Agricultural Microbiology Department, National Academy of Agricultural Science, Rural Development Administration, Suwon, Korea.