Contributions of illegitimate and premaritally conceived legitimate births to total fertility.
D000293:Adolescent; D000328:Adult; D001723:Birth Rate; D004739:England; D005260:Female; D005298:Fertility; D006801:Humans; D007086:Illegitimacy; D007231:Infant, Newborn; D007563:Jamaica; D008393:Marriage; D011247:Pregnancy; D014481:United States; D014852:Wales