搜索结果: 1-2 共查到“人口统计学 Developed Countries”相关记录2条 . 查询时间(0.125 秒)
Sexually Transmitted Diseases Among Adolescents in Developed Countries
Sexually Transmitted Diseases Adolescents Developed Countries
2009/9/15
Context: Sexually transmitted diseases (STDs) are responsible for a variety of health problems, and can have especially serious consequences for adolescents and young adults. An international comparis...
Adolescent Pregnancy and Childbearing:Levels and Trends in Developed Countries
Adolescent Pregnancy Developed Countries Childbearing
2009/9/15
Context: Adolescent pregnancy occurs in all societies, but the level of teenage pregnancy and childbearing varies from country to country. A cross-country analysis of birth and abortion measures is va...