1. Department of Pathology, School of Medicine, Kyungpook National University, Daegu, Korea.
2. Department of Internal Medicine, Jeju National University School of Medicine, Jeju, Korea.
3. Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Korea.
4. Department of Laboratory Medicine, Daegu Fatima Hospital, Daegu, Korea.
5. Division of Antimicrobial Resistance, National Institute of Health, Centers for Disease Control and Prevention, Cheongju, Korea.