Funding for this research was provided by:
National Natural Science Foundation of China (31672573)
Beijing Science and Technology Program (Z171100001517008)
Beijing New-star Plan of Science and Technology (Z161100004916115)
Text and Data Mining valid from 2019-04-11
Received: 30 September 2018
Accepted: 1 March 2019
First Online: 11 April 2019
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