Retraction Retraction dated 2022-09-14
Click to view Retraction: https://doi.org/10.1186/s12890-021-01521-7
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Authors
Kang, Honggang
Ma, Dan
Zhang, Jing
Zhao, Jun
Yang, Mengxiang
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More Information
Article History
Received: 17 February 2021
Accepted: 29 April 2021
First Online: 15 May 2021
Change Date: 14 September 2022
Change Type: Correction
Change Details: This article has been retracted. Please see the Retraction Notice for more detail:
Change Details: https://doi.org/10.1186/s12890-022-02142-4
Declarations
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: Written informed consents were signed by all the patients and the study was approved by the Ethics Committee of Liaocheng People’s Hospital. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.
