J Studd. Show Affiliations »
Abstract
Mesh: See more » Cervix UteriDilatationFemaleHumansLabor Stage, FirstObstetric Labor Complications/diagnosisParityPregnancy
Year: 1975 PMID: 1174858 PMCID: PMC1674579 DOI: 10.1136/bmj.3.5985.702
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447