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Birth WeightPremature BirthBirth RateInfant, Low Birth WeightInfant, NewbornPregnancyBirth OrderBirth CertificatesGestational AgeBirth IntervalsPregnancy OutcomeBirth InjuriesMultiple Birth OffspringMaternal AgeCongenital AbnormalitiesInfant MortalityDelivery, ObstetricPregnancy ComplicationsVaginal Birth after CesareanParityInfant, Small for Gestational AgeCohort StudiesAnimals, NewbornRisk FactorsHome ChildbirthMaternal ExposurePrenatal CareFetal DeathObstetric Labor, PrematurePrenatal Exposure Delayed EffectsMidwiferyMothersCesarean SectionFetal DevelopmentPerinatal CareStillbirthChild DevelopmentInfant, Premature, DiseasesPregnancy, MultipleBody HeightObstetric Labor ComplicationsApgar ScorePregnancy in AdolescenceSex RatioPaternal AgeBreast FeedingAsphyxia NeonatorumLabor, ObstetricSocioeconomic FactorsAge FactorsProspective StudiesIntensive Care Units, NeonatalMaternal Health ServicesBirthing CentersBody WeightPerinatal MortalityUnited StatesLogistic ModelsFetusIllegitimacyRetrospective StudiesWeaningVital StatisticsWeight GainOdds RatioGrowthRegistriesAbnormalities, Drug-InducedDystociaPregnancy Complications, InfectiousMaternal WelfareLitter SizeMaternal-Fetal ExchangeTime FactorsReproductive Techniques, AssistedTripletsInfant CareAbortion, SpontaneousEducational StatusRegression AnalysisInfant WelfareIncidenceDelivery RoomsLongitudinal StudiesDevelopmental DisabilitiesPrevalenceCase-Control StudiesFetal MacrosomiaHospitals, MaternityEmbryonic and Fetal DevelopmentPregnancy Trimester, ThirdDenmarkFetal BloodSeasonsBreedingMaternal Nutritional Physiological PhenomenaFertilityIntensive Care, NeonatalFollow-Up StudiesNorway