Funding for this research was provided by:
National Natural Science Foundation of China (71974117)
512 Talent Training Project of Bengbu Medical College (BY51201203)
Received: 2 April 2022
Accepted: 3 August 2022
First Online: 22 September 2022
: The country datasets in the GYTS are publicly available, comply with the corresponding national ethical board review, and exempt under the ethical board review of the corresponding author’s institution.
: Not applicable.
: The authors declare that they have no competing interests.