Wang, L.
Cheng, X. G.
Su, Y. B.
Brown, K.
Xu, L.
Li, K.
Zhang, C. X.
Zhang, Y.
Duanmu, Y. Y.
Wu, X. B.
Wang, M. Y.
Funding for this research was provided by:
National Natural Science foundation of China (81071131)
Beijing Bureauof Health 215 program (2009-2-03, 2013-3-033)
Capital Characteristic Clinic Project (Z141107002514072)