K B Kuah, M P Embrey. Show Affiliations »
Abstract
Mesh: See more » Abortion, Spontaneous/diagnosisAdultCesarean SectionFemaleFetal Heart/physiologyHumansPlacentaPregnancyUltrasonics/instrumentationUltrasonography
Year: 1968 PMID: 5639633 PMCID: PMC1985051 DOI: 10.1136/bmj.1.5589.438
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447