Zhang, Jie
Lou, Jia
He, Hao
Xie, Youneng
Funding for this research was provided by:
Changsha Science and Technology Plan Project (KQ1801140)
Health and Family Planning Commission of Hunan Province (B2016244)
Guangxi Science and Technology Plan Project (2017GXNSFBA198187, 2018GXNSFAA281237)
Article History
Received: 27 March 2019
Accepted: 30 July 2019
First Online: 9 August 2019