Funding for this research was provided by:
talent introduction plan of yijishan hospital, wannan medical college (YR201917)
technology mountaineering program of yijishan hospital, wannan medical college (PF2019005)
Received: 28 July 2021
Accepted: 16 September 2021
First Online: 26 September 2021
: The study protocol was granted approval by the ethics review board of Yijishan Hospital, Wannan Medical College. All procedures performed in the study were in accordance with the 1964 Helsinki declaration. We obtained verbal consent from all subjects prior to collecting data from this study.
: Not applicable.
: The authors declare that they have no competing interests.