Lumley, J The unreliability of a single estimation of fetal scalp blood pH. [electronic resource] - The Journal of laboratory and clinical medicine Apr 1971 - 535-42 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0022-2143 Subjects--Topical Terms: BloodBlood Gas AnalysisBlood Specimen CollectionCapillariesCarbon Dioxide--bloodFemaleFetusHumansHydrogen-Ion ConcentrationInfant, NewbornMaternal-Fetal ExchangeMethodsOxygen--bloodPregnancyScalp--blood supplyUterus--physiology