1. Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, National University Bundang Hospital, Seongnam, Korea.
2. Department of Laboratory Medicine, Pusan National University Hospital, Busan, Korea.
3. Department of Laboratory Medicine, Green Cross Laboratories, Yongin, Korea.
4. Department of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea.
5. Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea.
6. Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
7. Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea.