Zhang Cuiling1, China Population and Development Research Center; Li Yue2, China Population and Development Research Center; Yang Wenzhuang3, Population Monitoring and Family Development Division, National Health Commission of China; Zhang Xuying4(Corresponding Author),China Population and Development Research Center.
Online:2021-05-29
Published:2021-06-16
About author:Zhang Cuiling is Researcher, China Population and Development Research Center; Li Yue is Associate Researcher, China Population and Development Research Center; Yang Wenzhuang is Director, Population Monitoring and Family Development Division, National Health Commission of China; Zhang Xuying(Corresponding Author) is Researcher,China Population and Development Research Center.