title: Early identification of placenta praevia.
authors.forename: W G
authors.initials: WG
authors.lastname: Taylor
mesh_terms: D005260:Female; D006801:Humans; D010923:Placenta Previa / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D016216:Ultrasonography, Prenatal / Q000379:methods