Funding for this research was provided by:
National Natural Science Foundation of China (81701660)
Received: 30 March 2020
Accepted: 26 May 2020
First Online: 15 June 2020
Ethics approval and consent to participate
: The research protocol complies with the human ethics standards and was approved by the Medical Ethics Committee of the Second Xiangya Hospital of Central South University. All subjects signed an informed consent.
: Not Applicable.
: The authors declare that they have no competing interests.