Su, Ling
Lu, Zhikun
Li, Fatao
Shao, Yongxian
Sheng, Huiying
Cai, Yanna
Liu, Li
Funding for this research was provided by:
Health and Family planning Commission of Guangzhou Municipality (20151A010048)
National “Twelfth Five-Year” Plan for Science and Technology (2012BAI09B04)