Wang, Ying
Liu, Jia
Jiang, Yuliang
Zhang, Heng
Leng, Song
Wang, Guang
Funding for this research was provided by:
the Major National Basic Research Program of P. R. China (2011CB503904)
the Chinese National Natural Science Foundation (81270369, 81070244, 30770873)
the Beijing Natural Science Foundation (7142060)