Chhetri, Jagadish Kumar
Zheng, Zheng
Xu, Xitong
Ma, Cuihong
Chan, Piu
Funding for this research was provided by:
Beijing Municipal Commission on Science and Technology (D07050701130000;D07050701130701)
Ministry of Health of the People's Republic of China (201002011)
Ministry of Science and Technology of the People's Republic of China (2012AA02A514;0S2012GR0150; 2012ZX09303–005)
Beijing Municipal Administration of Hospitals. (ZYLX201301)