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Authors
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Funding
Funding for this research was provided by:
Beijing Municipal Administration of Hospitals’ Ascent Plan (DFL20180802)
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Article History
Received: 19 June 2020
Revised: 10 September 2020
Accepted: 21 September 2020
First Online: 30 September 2020
Compliance with ethical standards
:
: These authors declared no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee as well as with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
