Funding for this research was provided by:
National Natural Science Foundation of China (31300927)
the Medical Scientific Research Foundation of Guangdong Province (A2016496)
Key, the Pearl River S&T Nova Program of Guangzhou (201710010047)
Article History
Received: 18 March 2018
Revised: 5 May 2018
Accepted: 4 June 2018
First Online: 15 June 2018
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: Ethical approval was not required. All the studies contained in this article were in compliance with ethical standards and have been published online. All the presented data were anonymized and there is no risk of identification.