Funding for this research was provided by:
National Natural Science Foundation of China (81801692)
Suzhou Municipal Science and Technology Bureau (KJXW2017005, SS201808)
Received: 13 July 2020
Accepted: 24 September 2020
First Online: 2 October 2020
Ethics approval and consent to participate
: The Ethics Committees (IRBs) at the First Affiliated Hospital of Soochow University, the Affiliated Infectious Diseases Hospital of Soochow University, the Fifth People’s Hospital of Wuxi, the First Affiliated Hospital of Bengbu Medical College and the First People’s Hospital of Suqian approved this retrospective study. And the need to obtain informed consent was waived by the IRBs because of de-identified data involving no potential risk to patients and no link between the patients and the researchers.
: Not applicable.
: The authors declare that they have no competing interests.