Funding for this research was provided by:
National Natural Science Foundation of China (81200748)
The Natural Science Fund of Guangdong Province (2018A030313112)
The Science Plan Fund of Guangzhou (201803010033)
Received: 18 May 2019
Accepted: 27 July 2020
First Online: 6 August 2020
Ethics approval and consent to participate
: The ethics committee of the Clinical Research and Experimental Animal of the First Affiliated Hospital of Sun Yat-sen University approved this study and all participants gave their written consent. The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008.
: Not applicable.
: The authors declare that they have no competing interests.