Affiliation: | 1. Department of Respiratory Medicine, Zhongshan Hospital, Fudan University, Shanghai, China;2. Department of Respiratory Medicine, Huadong Hospital, Fudan University, Shanghai, China;3. International Nosocomial Infection Control Consortium, Buenos Aires, Argentina;4. Department of Infection Control, Chaoyang Hospital, Beijing, China;5. Department of Infection Control, First Hospital, Shanxi Medical University, Tai Yuan, China;6. Department of Infection Control, Second Affiliated Hospital of Xi’an Jiaotong University Medical College, Xi’an, China |