Chen, Siying
He, Hairong
Wang, Yan
Liu, Leichao
Liu, Yang
You, Haisheng
Dong, Yalin
Lyu, Jun
Funding for this research was provided by:
National Natural Science Foundation of China (81502616)
National Social Science Foundation of China (16BGL183)
Natural Science Foundation of Shaanxi Province (2017JM8013)
Natural Science Foundation of Shaanxi Province (2015JM8415)
Article History
Received: 29 December 2017
Accepted: 2 August 2018
First Online: 20 August 2018
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.