1. Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
2. Department of Laboratory Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
3. Seegene Medical Foundation, Seoul, Korea
4. Department of Laboratory Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
5. Department of Laboratory Medicine, Korea University Anam Hospital, Korean University School of Medicine, Seoul, Korea