Yu, Qihong
He, Jingdong
Xing, Bin
Li, Xin
Qian, Hongyu
Zhang, Hong
Xu, Meilin
Peng, Haiying http://orcid.org/0000-0002-9288-6843
Article History
Received: 13 June 2019
Accepted: 27 March 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of Tianjin Chest Hospital (2018KY-009-01). All participants has signed the informed consent voluntarily.
: Not applicable.
: The authors declare that they have no competing interests.