Funding for this research was provided by:
young teacher project of beijing university of chinese medicine (2018-JYBZZ-JS014, 2017-JYB-JS-022)
Received: 22 June 2021
Accepted: 13 September 2021
First Online: 2 October 2021
: This project was approved by the Ethics Commission of Beijing University of Chinese Medicine (Ref: 2018BZHYLL0113) with signed informed consent obtained from all participants. The study complies with all relevant ethical regulations.
: Not applicable.
: The authors declare that they have no competing interests.