Xiong, Wei
Du, He
Xu, Mei
Ding, Wei
Sun, Jinyuan
Han, Fengfeng
Guo, Xuejun
Article History
Received: 7 February 2020
Accepted: 10 August 2020
First Online: 18 August 2020
Ethics approval and consent to participate
: This protocol was approved by the institutional review boards of Shanghai Xinhua Hospital, Shanghai Pulmonary Hospital, and Shanghai Punan Hospital.
: Not applicable.
: The authors declare that they have no competing interests.