Obstetric analgesia and placental insufficiency.
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D016362:Analgesia, Obstetrical; D000758:Anesthesia; D000776:Anesthesiology; D001238:Asphyxia Neonatorum; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007743:Labor, Obstetric; D010920:Placenta; D010927:Placental Insufficiency; D011247:Pregnancy