BANCROFT-LIVINGSTON, G Studies in prolonged pregnancy. I. Cord blood oxygen levels at delivery. [electronic resource] - The Journal of obstetrics and gynaecology of the British Empire Aug 1957 - 498-503 p. digital Publication Type: Journal Article ISSN: 0307-1871 Standard No.: 10.1111/j.1471-0528.1957.tb06278.x doi Subjects--Topical Terms: Delivery, ObstetricFemaleFetal BloodHumansOxygen--bloodPregnancyPregnancy, ProlongedUmbilical Cord