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Authors
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (32071436, 32071436)
Natural Science Foundation of Beijing Municipality (7202164)
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Article History
Received: 28 October 2021
Accepted: 19 December 2021
First Online: 24 January 2022
Compliance with ethical standards
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: The authors declare no competing interests.
: The study was conducted in accordance with the Declaration of Helsinki (as revised in 2013). The study was approved by the Ethical Committee of the Peking Union Medical College Hospital and individual consent for this retrospective analysis was waived. All the procedures being performed were part of the routine care.
