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Authors
Li, Yuan
Wang, Xiaoqian
Jiang, Fengjuan
Chen, Wenqing
Li, Jie
Chen, Xiaotian https://orcid.org/0000-0001-6112-0784
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Funding
Funding for this research was provided by:
the key project supported by medical science and technology development foundation, nanjing department of health (YKK16082, YKK17087 and YKK18079)
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Article History
Received: 29 July 2021
Accepted: 20 September 2021
First Online: 29 September 2021
Declarations
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: Since this was an observational cohort study, based only on anonymous data analysis and retrospective collection, informed consent was waived. The Medical Ethics Committee of Nanjing Drum Tower Hospital ruled that no formal ethics approval was required in this particular case. All procedures were performed in accordance with the principles of the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.
