Wang, X.
Wang, S. Y.
Liu, W. F.
Xi, X. J.
Zhang, H.
Guo, F.
Xu, X. L.
Li, M.
Liu, L.
Zhang, C.
Li, X.
Yang, J. B.
Funding for this research was provided by:
Research Grant Council of Hong Kong (HKU 702112P, RGC 701813)
National Natural Science Foundation of China (11004148, 11104202)