Funding for this research was provided by:
National Natural Science Foundation of China (No. 81871720, No. 82072363)
Nantong Municipal Commission of Health and Family Planning (QA2020027)
Article History
Received: 23 February 2022
Accepted: 25 May 2022
First Online: 11 June 2022
Declarations
:
: The ethics committee of the local hospital (ethical review report number: 2018-L055) approved the study.
: The informed consent obtained from study participants.
: The authors declare that they have no competing interests.