1. Departments of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
2. Departments of Laboratory Medicine, Chonnam National University Medical School, Gwangju, Korea
3. Department of Laboratory Medicine, Ajou University College of Medicine, Suwon, Korea
4. Department of Laboratory Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
5. Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea