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Authors
Wu, Lei-Lei
Li, Chong-Wu
Lin, Wei-Kang
Qiu, Li-Hong
Xie, Dong
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Article History
Received: 1 June 2021
Accepted: 28 August 2021
First Online: 9 September 2021
Declarations
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: The Ethics Committee of Shanghai Pulmonary Hospital approved this study and considered this study exempt from ethical review because existing data without patient identifiers were used.
: Not applicable.
: There are no conflicts of interest to declare.
