1. Department of Biostatistics, Clinical Trial Center, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.
2. Clinical Trial Center, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
3. Department of Laboratory Medicine and Genetics, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.
4. Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
5. Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea.
6. Department of Laboratory Medicine, Ajou University School of Medicine, Suwon, Korea.
7. Department of Laboratory Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
8. Department of Biostatistics, Korea University College of Medicine, Seoul, Korea.