Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2014CB643800)
National Natural Science Foundation of China (21425101, 21321001, 21371011, 21331001, 91422302)
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COPYRIGHT AND LICENSING
: The Partner Organisations have an exclusive publication licence for this journal
PEER REVIEW METHOD
: Single-blind
PUBLICATION HISTORY
: Received 14 April 2017; Accepted 17 May 2017; Accepted Manuscript published 18 May 2017; Advance Article published 31 May 2017; Version of Record published 11 July 2017