Funding for this research was provided by:
Zhejiang Provincial Natural Science Foundation of China (LY14F020044)
National Natural Science Foundation of China (U1713205, 51409117)
Text and Data Mining valid from 2018-10-24
Received: 22 January 2018
Accepted: 11 October 2018
First Online: 24 October 2018
: The authors declare that they have no competing interest.
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