De, Ri
Liu, Liying
Qian, Yuan
Zhu, Runan
Deng, Jie
Wang, Fang
Sun, Yu
Dong, Huijin
Jia, Liping
Zhao, Linqing
Funding for this research was provided by:
Beijing Municipal Commission of Health and Family “The Special Fund for Capital Health Research and Development” (No. 2014-2-1132)
Beijing Natural Science Foundation of China (No. 7152026)