title: Roentgen diagnosis of placenta previa without contrast material.
authors.forename: V W
authors.initials: VW
authors.lastname: ARCHER
authors.forename: N
authors.initials: N
authors.lastname: ADAIR
mesh_terms: D003287:Contrast Media; D005260:Female; D006801:Humans; D010920:Placenta; D010923:Placenta Previa; D011247:Pregnancy
chemical_list: D003287:Contrast Media
keywords: PLACENTA/praevia