Funding for this research was provided by:
National Natural Science Foundation of China (81871373)
Received: 9 January 2020
Accepted: 21 June 2020
First Online: 21 July 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of the China Medical University. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.