Rheumatic DiseasesRheumatic FeverRheumatic Heart DiseaseRheumatic NoduleChoreaMitral Valve StenosisArthritis, RheumatoidStreptococcus pyogenesAntistreptolysinHeart Valve DiseasesPharyngitisArthritisStreptococcal InfectionsPenicillin G BenzathineLupus Erythematosus, SystemicMitral Valve InsufficiencySpondylitis, AnkylosingMitral ValveRheumatologyArthritis, ReactiveNorthern TerritoryMyocarditisGrenadaAutoimmune DiseasesConnective Tissue DiseasesSpondylitisArthritis, JuvenileAutoantibodiesAntirheumatic AgentsScleroderma, SystemicHeart ValvesAcute DiseaseAortic Valve InsufficiencySjogren's SyndromeRheumatoid FactorOsteoarthritisMixed Connective Tissue DiseaseGoutBalloon ValvuloplastyArthritis, PsoriaticChordae TendineaeHeart MurmursClimatotherapySynovial FluidHeart Valve Prosthesis ImplantationOceanic Ancestry GroupMitral Valve ProlapseHeart Valve ProsthesisFibromyalgiaPyodermaEchocardiographyAortic ValveStreptococcusStreptococcal VaccinesAntigens, BacterialSpondylarthropathiesVasculitisMicroscopic AngioscopyHand Deformities, AcquiredEndocarditis, Subacute BacterialHLA-B27 AntigenPolymyalgia RheumaticaParaneoplastic SyndromesCollagen DiseasesImmunoglobulin GScarlet FeverEndarteritisPortugalEndocarditis, BacterialChronic Disease