He, Xiaozhen
Liu, Shao
Lai, Weiwei
Yan, Bin
Liu, Xiaoli
Jiang, Yiqun
Liu, Shuang
Chen, Ling
Shi, Ying
Tao, Yongguang
Funding for this research was provided by:
the China Postdoctoral Science Foundation (2012M511422)
the Hunan Natural Science Foundation of China (12JJ1013)
the National Basic Research Program of China (2011CB504300)
the Fundamental Research Funds for the Central Universities (2011JQ019)
the National Natural Science Foundation of China (81171881, 81372427, 81271763)