Liu, Hua
Li, Jianjiao
Yang, Ying
Liu, Liu
Yu, Lifu
Tu, Minsong
Yuan, Ruihong
Yue, Wanyuan
Luo, Qi
Ruan, Yonghua
Dai, Xiaoming
Funding for this research was provided by:
Yunnan Provincial Science and Technology Department, Health and Family Planning Commission of the Yunnan Province
Article History
Received: 17 May 2018
Accepted: 8 August 2018
First Online: 22 August 2018
Competing Interests
: The authors declare no competing interests.