Some implications of self-selection for pregnancy.
D000022:Abortion, Spontaneous / Q000453:epidemiology*; D003267:Contraception; D003276:Contraceptives, Oral; D005260:Female; D005298:Fertility; D005313:Fetal Death / Q000453:epidemiology*; D005500:Follow-Up Studies; D006801:Humans; D007226:Infant Mortality; D010298:Parity; D011247:Pregnancy; D012008:Recurrence; D012606:Scotland
D003276:Contraceptives, Oral