Funding for this research was provided by:
National Key R&D Program of China (2017YFE0103200)
Natural Science Foundation of Fujian Province (2018J01897, 2018J01729)
Fuzhou Municipal Science and Technology Program (2020-XG-021)
Received: 18 September 2020
Accepted: 7 October 2020
First Online: 29 December 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the Fuzhou pulmonary hospital of Fujian. All subjects provided informed written consent documents in accordance with the Declaration of Helsinki before enrollment.
: Not applicable.
: The authors declare that they have no competing interests.