Funding for this research was provided by:
Newton Fund (MR/P00756/1)
National Natural Science Foundation of China (MR/P00756/1)
Received: 28 August 2019
Accepted: 7 May 2020
First Online: 22 June 2020
Ethics approval and consent to participate
: The full research protocol was reviewed and approved by the Biomedical Ethics Committee of Anhui Medical University (reference number: 20170271). Participation of patients and doctors is voluntary and written informed consent is sought from all participants.
: Not applicable.
: The authors declare that they have no competing interests.