1. Department of Hospital Pathology, St. Vincent's Hospital, College of Medicine The Catholic University of Korea Seoul South Korea
2. Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul South Korea
3. Department of Hospital Pathology, Eunpyeong St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul South Korea
4. Department of Surgery, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul South Korea
5. Department of Hospital Pathology, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul South Korea