Niu, Xueliang
Chen, Wei
Wang, Xiuli
Men, Yongling
Wang, Qin
Sun, Wei http://orcid.org/0000-0002-9923-7328
Li, Guangjiu
Funding for this research was provided by:
National Natural Science Foundation of China (21665007)
Program for Innovative Research Team in University (IRT-16R19)
Natural Science Foundation of Hainan Province (2017CXTD007)
Key Science and Technology Program of Haikou City (2017042)
Fundamental Research Funds for the Central Universities (30916014103)
Article History
Received: 19 January 2018
Accepted: 28 January 2018
First Online: 10 February 2018
Compliance with ethical standards
: The authors declare that they have no competing interests.