搜索结果: 1-1 共查到“计划生育学 Foreign”相关记录1条 . 查询时间(0.093 秒)
Estimating the contribution of mothers of foreign origin to total fertility: The recent recovery of period fertility in the Belgian region of Flanders
Belgium fertility migrants nationality
2014/11/26
Background: Since the early 21st century, period total fertility has been recovering from (very) low levels in many European countries. This trend is partly attributable to the end of the postponement...