1. Department of Laboratory Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
2. Seegene Medical Foundation, Seoul, Korea.
3. Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Seoul, Korea.
4. Department of Laboratory Medicine, Seoul National University Hospital, Seoul, Korea.
5. Department of Infectious Diseases, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.