Funding for this research was provided by:
National Natural Science Foundation of China (81530053,81830052,81602415)
Text and Data Mining valid from 2019-09-05
Received: 20 March 2019
Accepted: 16 August 2019
First Online: 5 September 2019
Ethics approval and consent to participate
: This research was approved by the institutional clinical research ethics committee of Shanghai Chest Hospital and Renji Hospital, School of Medicine, Shanghai Jiaotong University. And informed consent was obtained from all participants included in the study, in agreement with institutional guidelines.
: Not applicable.
: The authors declare that they have no competing interests..