1. Department of Clinical Laboratory Science, Wonkwang Health Science University, Iksan, Korea.
2. Department of Clinical Pathology, Gwangju Health College University, Gwangju, Korea.
3. Department of Laboratory Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
4. Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea.
5. Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea.