Ding, Yun
Li, Jiuzhen
Li, Xin
Xu, Meilin
Geng, Hua
Sun, Daqiang
Funding for this research was provided by:
Natural Funding Project of Tianjin Science and Technology Bureau (20JCYBJC01350)
Article History
Received: 20 March 2022
Accepted: 27 July 2022
First Online: 30 July 2022
Declarations
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This study was approved by the Ethics Review Committee of Tianjin Chest Hospital. Informed consent was waived by the Ethics Review Committee of Tianjin Chest Hospital as this was a retrospective study.
: Not applicable.
: The authors declare no competing interests.