Social influences on reproductive performance.
D000367:Age Factors; D001723:Birth Rate; D001942:Breast Feeding; D002585:Cesarean Section; D004739:England; D005193:Family Planning Services; D005260:Female; D008297:Male; D011247:Pregnancy; D012098:Reproduction; D012606:Scotland; D012923:Social Class; D012959:Socioeconomic Factors; D013222:State Medicine; D014852:Wales