1. Department of Laboratory Medicine, College of Medicine, Chosun University, Gwangju, Korea
2. Research Center for Resistant Cells, College of Medicine, Chosun University, Gwangju, Korea
3. Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
4. Premedical Science, College of Medicine, Chosun University, Gwangju, Korea