Wang, Guirong
Liang, Ruixia
Sun, Qing
Liao, Xinlei
Wang, Chenqian
Huang, Hairong
Article History
Received: 8 July 2021
Accepted: 12 April 2022
First Online: 29 April 2022
Declarations
:
: This study was approved by the Ethics Committee of the Beijing Chest Hospital, Capital Medical University and all methods were carried out in accordance with relevant guidelines and regulations. Confidentiality of the information related to study participates was assured during and after the data collection, and informed consent was waived due to its retrospective characterization.
: Not applicable.
: The authors declare that they have no competing interests.