Funding for this research was provided by:
National Natural Science Foundation of China (81560524)
China Postdoctoral Science Foundation (2014T70839)
Guangxi Medical University Training Program for Distinguished Young Scholars (2017)
Natural Science Foundation of Guangxi Province (2018GXNSFAA050076)
Article History
Received: 28 April 2019
Accepted: 26 August 2019
First Online: 3 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.