AntimonyTreatment FailureAntimony Potassium TartrateAntimony Sodium GluconateAntiprotozoal AgentsDrug ResistanceMeglumineHeart FailureDrug Resistance, MicrobialDrug Resistance, BacterialLeishmaniasis, VisceralLeishmania donovaniDrug Resistance, NeoplasmOrganometallic CompoundsLeishmaniasis, CutaneousDrug Resistance, MultipleAnti-Bacterial AgentsTreatment OutcomeDrug Resistance, ViralTechnetium CompoundsMicrobial Sensitivity TestsDrug Resistance, Multiple, BacterialArsenicParasitic Sensitivity TestsAntimalarialsDisease ResistanceTartratesLeishmaniasisVascular ResistanceLeishmaniaDrug Therapy, CombinationDrug CombinationsSulfadoxinePyrimethamineLeishmania braziliensisNeutron Activation AnalysisIon PumpsLeishmaniasis, MucocutaneousTime FactorsArsenitesMutationMalaria, FalciparumArsenite Transporting ATPasesChloroquineRetrospective Studies