Incidence of childlessness for United States Women, cohorts born 1891-1945.
D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D005298:Fertility; D006801:Humans; D007247:Infertility, Female / Q000453:epidemiology*; D008393:Marriage; D008875:Middle Aged; D010298:Parity; D014481:United States