Funding for this research was provided by:
National Natural Science Foundation of China (31110103903, 31222013, and 31702018)
Frontier Science Key Project of the Chinese Academy of Sciences (QYZDJ-SSW-SMC024)
Strategic Priority Research Program of the Chinese Academy of Sciences (XDB11050000)
Text and Data Mining valid from 2018-07-27
Received: 1 June 2018
Accepted: 11 July 2018
First Online: 27 July 2018
Ethics approval and consent to participate
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: Not applicable.
: The authors declare that they have no competing interests.
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