1. Department of Laboratory Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
2. Department of Laboratory Medicine, Ajou University School of Medicine, Suwon, Korea
3. Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
4. Department of Laboratory Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
5. Division of Human Blood Safety Surveillance, Korea Centers for Disease Control & Prevention, Cheongju, Korea
6. Division of TB and HIV/AIDS Control, Korea Centers for Disease Control & Prevention, Cheongju, Korea