NorwayDeveloping CountriesDeveloped CountriesRats, Inbred BNPiceaEuropeScandinaviaWorld HealthInternational CooperationInternationalityPrevalenceCross-Cultural ComparisonAsiaWorld Health OrganizationAfricaIncidenceEuropean UnionQuestionnairesInfant, NewbornRisk FactorsMiddle EastSomaliaArctic RegionsRegistriesCross-Sectional StudiesPopulation SurveillanceLatin AmericaEmigration and ImmigrationSvalbardEurope, EasternDisease OutbreaksIcelandSwedenHealth PolicySeoul virusSocioeconomic FactorsIndiaAge FactorsReindeerPregnancyUnited NationsAfrica South of the SaharaTravelSalmo salarAge DistributionPakistanTime FactorsFish DiseasesSeasonsSex FactorsFinlandSex DistributionEmigrants and ImmigrantsGeographyAustraliaIncomePublic HealthSouth AmericaCanadaHealth SurveysData CollectionAsia, SoutheasternRussiaAsia, WesternUnited StatesDenmarkDelivery of Health CareRats, Inbred F344PhylogenyHealth Services AccessibilityCohort StudiesGreat BritainSmokingFisheriesNational Health ProgramsPacific IslandsAmericasProspective StudiesRural PopulationEducational StatusGenotypeSri LankaRodent ControlDemographySequence Analysis, DNAAquacultureNorth AmericaGermanyChileAfrica, NorthernCost of IllnessCluster AnalysisLogistic ModelsAnimals, WildEconomicsBrazil