Ideal family size in Northern Ireland.
D000293:Adolescent; D000328:Adult; D002410:Catholicism; D005191:Family Characteristics; D005193:Family Planning Services; D005298:Fertility; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D008875:Middle Aged; D009660:Northern Ireland; D012959:Socioeconomic Factors