Funding for this research was provided by:
Natural Science Foundation of Hainan Province (No.2018JJ2350)
the key project of the Education Department of Hunan Province (No.19A419)
Received: 10 January 2020
Accepted: 8 September 2020
First Online: 15 September 2020
Ethics approval and consent to participate
: The study was conducted after agreement from the ethics committee of University of South China and with two patients and a healthy volunteer' informed consent statement.
: Not applicable.
: The authors declare that they have no competing interests.