title: [Perinatal mortality for single births and twins in 1967-1984].
authors.forename: P
authors.initials: P
authors.lastname: Magnus
authors.forename: T
authors.initials: T
authors.lastname: Haldorsen
authors.forename: L S
authors.initials: LS
authors.lastname: Bakketeig
mesh_terms: D005260:Female; D005313:Fetal Death / Q000453:epidemiology*; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D009664:Norway; D011247:Pregnancy; D014427:Twins
vernacular_title: Perinatal dødelighet for enkelfødte og tvillinger 1967-84.