Funding for this research was provided by:
National Natural Science Foundation of China (30672072, 30872531)
Foundation of Science and Technology Department of Zhejiang Province, China (2014C33187)
National High-Tech R&D Program (863) of China (2007AA02Z476)
ORCID
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Publication History
Received: 2017-01-03
Accepted: 2017-02-12
Crosschecked: 2017-09-15
Content Type
: Article
Copyright
: © Zhejiang University and Springer-Verlag Berlin Heidelberg 2017