×
模态框(Modal)标题
在这里添加一些文本
Close
Close
Submit
Cancel
Confirm
×
模态框(Modal)标题
在这里添加一些文本
Close
Toggle navigation
Home
About Journal
Editorial Border
Instruction
Editorial office
Office Work
Editor Work
Editor-in-Chief
Subscription
Contact Us
中文
Rising Sex Ratio at Birth in China:Responses and Effects of Social Policies
宋健
Population Research . 2009, (
4
): 1 -9 .