1. Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, China
2. Institute of Bacterium Resistance, Anhui Medical University, Hefei, China
3. Anhui Center for Surveillance of Bacterial Resistance, Hefei, China
4. Department of Clinical Medicine, Xiangya School of Medicine, Central South University, Changsha, China
5. Department of Infectious Diseases, Chaohu Hospital of Anhui Medical University, Hefei, China