Funding for this research was provided by:
National Natural Science Foundation of China (61762037, 61640217)
National Natural Science Foundation of China (41402290, 61462028)
Science and Technology Support Program of Jiangxi Province (20151BBE50055)
Nanchang City Knowledge Innovation Team (2016T75)
Science and Technology Project supported by education department of Jiangxi Province (GJJ150541)
Article History
First Online: 1 November 2017
Compliance with ethical standards
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: The authors declare that there is no conflict of interest regarding the publication of this paper.