title: A single cervical length measurement at 18-24 weeks is a better predictor of preterm birth than the change in cervical length with gestation.
authors.affiliation: St George's University of London, London, UK.
authors.forename: Asma
authors.initials: A
authors.lastname: Khalil
mesh_terms: D054791:Cervical Length Measurement; D005260:Female; D006801:Humans; D011247:Pregnancy; D047928:Premature Birth / Q000175:diagnosis*