Funding for this research was provided by:
Science and Technology Projects of Medicine and Health of Zhejiang (no.2018KY688)
the Science and Technology Projects of Medicine and Health of Zhejiang (no.2016KYB274)
Article History
Received: 29 August 2018
Accepted: 12 March 2019
First Online: 18 March 2019
Authors’ information
: ZJX, CHL, and YFZ: Intensive Care Unit, Ningbo No. 2 Hospital, Zhejiang, People’s Republic of China; QFS: Department of Microbiology, Ningbo Municipal Centre for Disease Control and Prevention, Ningbo, Zhejiang Province, People’s Republic of China.
: This study was approved by the Ethics Committee of Ningbo No. 2 Hospital<b>.</b> Since this study was retrospectively conducted, no intervention with patients was applied, and deidentification of patients was taken, the need for consent was unnecessary according to the Regulations of Ethical Reviews of Biomedical Research Involving Human Beings of China.
: Not applicable.
: The authors declare that they have no competing interests.
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