Li, Lu https://orcid.org/0000-0002-3097-1954
Lv, Ruidong
Chen, Zhendong
Wang, Jiang
Liu, Sicong
Ren, Wei
Wang, Yonggang
Funding for this research was provided by:
National Natural Science Foundation of China (61705183)
Central University special fund basic research and operating expenses (GK201702005)
Natural Science Foundation of Shaanxi Province (2017JM6091)
Fundamental Research Funds for the Central Universities (2017TS011)
Article History
Received: 18 December 2018
Accepted: 1 February 2019
First Online: 19 February 2019
Competing Interests
: The authors declare that they have no competing interests.
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