Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (N172504021)
Medical Science and Technology Foundation of Guangdong Province (2017B030314092)
Natural Science Foundation of Liaoning Province (201602250)
Article History
Received: 25 October 2018
Accepted: 22 January 2019
First Online: 5 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.