Rheumatic DiseasesRheumatic FeverRheumatic Heart DiseaseChild WelfareDisabled ChildrenChild BehaviorRheumatic NoduleChoreaMitral Valve StenosisChild Health ServicesStreptococcus pyogenesArthritis, RheumatoidChild RearingAntistreptolysinChild, InstitutionalizedChild Behavior DisordersChild PsychologyPharyngitisHeart Valve DiseasesChild of Impaired ParentsStreptococcal InfectionsDental Care for ChildrenArthritisChild, OrphanedPenicillin G BenzathineLupus Erythematosus, SystemicParentsMitral Valve InsufficiencySpondylitis, AnkylosingMitral ValveAcute DiseaseRheumatologyArthritis, JuvenileChild Nutrition DisordersChild LanguagePrevalenceChild Nutritional Physiological PhenomenaNorthern TerritoryAge FactorsRisk FactorsChild MortalityArthritis, ReactiveRetrospective StudiesFollow-Up StudiesMyocarditisAutoantibodiesAutoimmune DiseasesCross-Sectional StudiesQuestionnairesTreatment OutcomeConnective Tissue DiseasesGrenadaAntirheumatic AgentsSpondylitisMothersProspective StudiesScleroderma, SystemicSeverity of Illness IndexHeart ValvesAortic Valve InsufficiencyParent-Child RelationsSjogren's SyndromeUnited StatesCase-Control StudiesRheumatoid FactorTime FactorsInfant, NewbornIncidenceOsteoarthritisMixed Connective Tissue DiseaseChronic DiseaseHeart MurmursSex FactorsSocioeconomic FactorsOceanic Ancestry GroupIndiaGoutLongitudinal StudiesPregnancyChild CustodyRecurrenceBalloon ValvuloplastyChild Development Disorders, PervasiveArthritis, PsoriaticChordae TendineaeAge DistributionPediatricsBody HeightImmunoglobulin GClimatotherapyAsthmaSchoolsEchocardiographyRural PopulationChild, AbandonedMother-Child RelationsSynovial FluidMitral Valve ProlapseDeveloping CountriesPlay and Playthings