title: Ultrasonography and perinatal mortality rates.
authors.forename: I M
authors.initials: IM
authors.lastname: Shirley
authors.forename: F
authors.initials: F
authors.lastname: Bottomley
mesh_terms: D000028:Abortion, Induced; D000013:Congenital Abnormalities / Q000000981:diagnostic imaging; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D011247:Pregnancy; D016216:Ultrasonography, Prenatal