Funding for this research was provided by:
National Natural Science Foundation of China (81570625)
Article History
Received: 29 February 2020
Accepted: 22 April 2020
First Online: 1 May 2020
Ethics approval and consent to participate
: All procedures in our study were approved by the Ethical Committee Group of Xiangya Hospital. Written informed consent was obtained from each participant.
: Not applicable.
: The authors declare that they have no competing interests.