Funding for this research was provided by:
The Education Reform Foundation of Hunan Province (HNJG-2021-0322)
The Education Reform Foundation of Central South University (No. 2021JY188)
National Natural Science Foundation of China (No. 81802208)
Natural Science Foundation of Hunan Province (No. 2021JJ40922)
Received: 4 November 2021
Accepted: 6 April 2022
First Online: 14 April 2022
: The ethics committee of third Xiangya Hospital approved this study (ID: 2021-S078). Students were voluntary to enroll in the research. All participants gave written informed consent. The experimental protocol was established according to the ethical guidelines of the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.