搜索结果: 1-2 共查到“计划生育学 1982-1995”相关记录2条 . 查询时间(0.51 秒)
Impaired Fecundity in the United States：1982-1995
Impaired Fecundity 1982-1995 United States
2009/9/14
Context: The 1995 National Survey of Family Growth (NSFG) provides new nationally representative data to test the accuracy of the commonly held assumption that impaired fecundity has been rising in th...
Trends in Contraceptive Use In the United States：1982-1995
Contraceptive Use 1982-1995 United States
2009/9/14
Context: Trends in contraceptive use have implications for shifts in pregnancy rates and birthrates and can inform clinical practice of changes in needs for contraceptive methods and services.
Met...