Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (XDJK2020D030)
Article History
Received: 22 March 2020
Accepted: 29 July 2020
First Online: 8 August 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: For this type of study formal consent is not required.
: Informed consent was obtained from all individual participants included in the study.