Funding for this research was provided by:
National Natural Science Foundation of China (39770322)
Article History
Received: 23 June 2020
Accepted: 4 November 2020
First Online: 12 November 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the University Ethics Committee.
: Informed consent was obtained from all individual participants included in the study.
: Informed consent for publication was obtained from all individuals included in the study.
: Not applicable.