Funding for this research was provided by:
capital medical university (PY2017003)
Received: 19 October 2021
Accepted: 4 January 2022
First Online: 11 January 2022
: All research procedures were approved by the ethics committee of Beijing Luhe Hospital, Capital Medical University(2018LH-KS-008).The participants were informed about the study in written and verbally, and about voluntariness. All participants gave their signed informed consent.
: Not applicable.
: The authors declare that they have no competing interests.