Kang, Nai-Min
Zhang, Nan
Luo, Bao-Jian
Wu, En-Dong
Shi, Jian-Quan
Li, Liang
Jiang, Li
Article History
Received: 13 December 2020
Accepted: 8 June 2021
First Online: 23 June 2021
Declarations
:
: The research protocol was approved by the Human Ethics Committee of Beijing Chest Hospital (2019-clinic-64) and the study was carried out based on the Declaration of Helsinki 1964. Written informed consent was obtained from all participants.
: Not applicable.
: All authors declare that they have no competing interests.