QuestionnairesRisk FactorsTime FactorsTreatment OutcomeUnited StatesGreat BritainHealth Knowledge, Attitudes, PracticeCross-Sectional StudiesReproducibility of ResultsDecision MakingPrevalenceAttitude to HealthSex FactorsAlgorithmsHealth Services for the AgedProspective StudiesRisk AssessmentInterviews as TopicFrail ElderlyPublic OpinionSocioeconomic FactorsAccidental FallsAge FactorsHealth StatusFollow-Up StudiesModels, TheoreticalPrejudicePatient Acceptance of Health CareHealth Services AccessibilityRural PopulationChoice BehaviorEnglandGames, ExperimentalAgingFocus GroupsActivities of Daily LivingChinaMoralsAustraliaWorld HealthSensitivity and SpecificityPunishmentCohort StudiesGeriatric AssessmentResidence CharacteristicsSocial PerceptionCultureComputer SimulationAnalysis of VarianceRetrospective StudiesMagnetic Resonance ImagingInfant, NewbornHIV InfectionsBody SizeHealth SurveysJudgmentData CollectionCommunicationChronic DiseaseHomeless PersonsHealth Services Needs and DemandInternetSocial SupportAge DistributionHealth BehaviorReaction TimeBrainCanadaModels, BiologicalDeveloping CountriesIncidenceInterpersonal RelationsPredictive Value of TestsHealth EducationInsect Bites and StingsPublic HealthMotivationQualitative ResearchModels, StatisticalResearch DesignSeverity of Illness IndexNetherlandsBiological EvolutionCooperative BehaviorRegression AnalysisHealthy People ProgramsEvidence-Based MedicinePregnancyQuality of LifeSocial BehaviorSex DistributionEndemic DiseasesEnvironmentBangladeshAttitude of Health PersonnelLinear ModelsArsenicPrognosisSocial EnvironmentMolecular Sequence Data