Funding for this research was provided by:
National Natural Science Foundation of China (81673046)
Article History
Received: 30 May 2020
Accepted: 22 December 2020
First Online: 6 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This is a review work. The Xiangya Hospital, Central South University Research Ethics Committee has confirmed that no ethical approval is required.