Liu, Yanli
Zhi, Lihui
Shen, Jing
Li, Shizhao
Yao, Junhu
Yang, Xiaojun
Funding for this research was provided by:
the Natural Science Foundation of China (No. 31272464)
the Program for New Century Excellent Talents (NCET-12-0476)
the Program for Shaanxi Science and Technology (2014K01-18-02, 2015NY149, 2015KTCQ02-19)