谷歌浏览器插件
订阅小程序
在清言上使用

Some Analytical Models to Estimate Maternal Age at Birth Using Age-Specific Fertility Rates.

PubMed(1995)

引用 4|浏览5
关键词
Age Factors,Age Specific Fertility Rate,Americas,Birth Order,Birth Rate,Demographic Factors,Developed Countries,Family And Household,Family Characteristics,Family Relationships,Fertility,Fertility Measurements,Fertility Rate,Maternal Age,Models, Theoretical,North America,Northern America,Parental Age,Parity,Parity Progression Ratio,Population,Population Characteristics,Population Dynamics,Research Methodology,United States
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要