1. Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
2. BioInfra, Inc., Seoul, Korea
3. Department of Pathology, Korea Regional Bank, Keimyung University School of Medicine, Daegu, Korea
4. Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
5. Department of Statistics, College of Natural Science, Seoul National University, Seoul, Korea