title: Numerator analysis of fertility patterns.
mesh_terms: D000293:Adolescent; D000328:Adult; D001722:Birth Order; D001723:Birth Rate; D002648:Child; D005193:Family Planning Services / Q000706:statistics & numerical data; D005260:Female; D005298:Fertility; D006801:Humans; D007434:Intrauterine Devices / Q000706:statistics & numerical data; D007564:Japan; D008423:Maternal Age; D008875:Middle Aged; D010298:Parity; D011247:Pregnancy; D013223:Statistics as Topic; D013624:Taiwan; D014481:United States