1. Department of Laboratory Medicine & Genetics, Soonchunhyang University Bucheon Hospital and Soonchunhyang University College of Medicine, Bucheon, Korea
2. Department of Internal Medicine, Soonchunhyang University Bucheon Hospital and Soonchunhyang University College of Medicine, Bucheon, Korea
3. Department of Laboratory Medicine & Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea