PhylogenyGenetic VariationMolecular Sequence DataCluster AnalysisRandom Amplified Polymorphic DNA TechniqueSequence Analysis, DNAEvolution, MolecularSpecies SpecificityDNA, BacterialBrazilPolymerase Chain ReactionRNA, Ribosomal, 16SBase SequenceAmino Acid SequenceTime FactorsTreatment OutcomeProspective StudiesRisk FactorsRetrospective StudiesCross-Sectional StudiesFollow-Up StudiesQuestionnairesCohort StudiesPregnancy