Funding for this research was provided by:
National Natural Science Foundation of China (81661138001, 81861138049)
Newton Fund (MR/P00756/1)
National Natural Science Foundation of China (81861138049)
Received: 2 August 2020
Accepted: 29 April 2021
First Online: 6 May 2021
: The study was approved by the Biomedical Ethics Committee of Anhui Medical University (reference number: 20170271). The patients and village doctors participated voluntarily, and written informed consent was obtained from all participants.
: Not applicable.
: The authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.