1. Department of Infectious Disease, The Chaohu Affiliated Hospital of Anhui Medical University, Hefei, China
2. Department of Infectious Disease, The First Affiliated Hospital of Anhui Medical University, Hefei, China
3. Anhui Center for Surveillance of Bacterial Resistance, Hefei, China
4. Institute of Bacterial Resistance, Anhui Medical University, Hefei, Anhui, China