Funding for this research was provided by:
National Key Research and Development Program of China (2017YFD0501004)
Natural Science Foundation of Shaanxi Province (K3380217115)
Fundamental Research Funds for the Central Universities (Z109021709)
Text and Data Mining valid from 2018-11-16
Received: 2 August 2018
Accepted: 29 October 2018
First Online: 16 November 2018
Ethics approval and consent to participate
: The animal protocol of this study was approved by the animal welfare committee of Northwest A&F University.
: Not applicable.
: The authors declare that they have no competing interests.
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