ErythromycinPregnancyPregnancy OutcomePregnancy ComplicationsErythromycin EstolatePregnancy, AnimalPregnancy, EctopicErythromycin EthylsuccinateAnti-Bacterial AgentsPregnancy Trimester, FirstPregnancy RatePregnancy Trimester, ThirdMacrolidesLeucomycinsLincomycinPregnancy Complications, CardiovascularMicrobial Sensitivity TestsPregnancy TrimestersSaccharopolysporaPregnancy TestsPregnancy, MultiplePregnancy in DiabeticsClindamycinPregnancy, TubalPregnancy Trimester, SecondDrug Resistance, MicrobialAzithromycinPregnancy Complications, InfectiousPregnancy Complications, NeoplasticPregnancy in AdolescenceRoxithromycinKetolidesJosamycinDrug Resistance, BacterialAbortion, SpontaneousPregnancy ProteinsPregnancy, UnplannedPregnancy, High-RiskPregnancy, UnwantedTetracyclineGestational AgeInfant, NewbornPregnancy Complications, HematologicStreptococcus pyogenesGastrointestinal AgentsStreptococcus pneumoniaePregnancy, ProlongedPre-EclampsiaPregnancy, TwinPlacentaClarithromycinStreptococcal InfectionsFetal DeathMiocamycinVirginiamycinLincosamidesAbortion, InducedPregnancy, AbdominalUterusPregnancy Complications, ParasiticPregnancy MaintenanceUltrasonography, PrenatalEmbryo ImplantationMotilinEmbryo TransferPrenatal CareFertilization in VitroPenicillinsOleandomycinChloramphenicolMaternal-Fetal ExchangePrenatal Exposure Delayed EffectsTroleandomycinParityBirth WeightCampylobacter coliGastric EmptyingTetracycline ResistancePregnancy Reduction, MultifetalPenicillin ResistanceMethyltransferasesMaternal AgeHypertension, Pregnancy-InducedAbnormalities, Drug-InducedCesarean SectionPneumococcal InfectionsFetal Growth RetardationProgesteroneTime FactorsStreptococcusPremature BirthStaphylococcusFetusInfertility, FemaleStaphylococcus aureusDrug Resistance, Multiple, BacterialAnti-Infective AgentsLactationFetal DevelopmentProspective Studies