NauseaPregnancyPregnancy ComplicationsPregnancy OutcomePostoperative Nausea and VomitingPregnancy, AnimalPregnancy, EctopicVomitingAntiemeticsPregnancy Trimester, FirstPregnancy RatePregnancy Trimester, ThirdPregnancy Complications, CardiovascularPregnancy TrimestersPregnancy TestsPregnancy, MultiplePregnancy in DiabeticsPregnancy, TubalPregnancy Trimester, SecondPregnancy Complications, NeoplasticPregnancy in AdolescencePregnancy Complications, InfectiousOndansetronAbortion, SpontaneousPregnancy ProteinsPregnancy, UnplannedPregnancy, High-RiskPregnancy, UnwantedGestational AgePregnancy Complications, HematologicInfant, NewbornMorning SicknessPregnancy, ProlongedPre-EclampsiaPregnancy, TwinPlacentaFetal DeathHyperemesis GravidarumAbortion, InducedPregnancy, AbdominalUterusPregnancy Complications, ParasiticMotion SicknessPregnancy MaintenanceUltrasonography, PrenatalEmbryo ImplantationVomiting, AnticipatoryEmbryo TransferCesarean SectionAcupressurePrenatal CareFertilization in VitroGranisetronDroperidolProchlorperazineMaternal-Fetal ExchangeMetoclopramideParityPrenatal Exposure Delayed EffectsProspective StudiesBirth WeightPregnancy Reduction, MultifetalMaternal AgeHypertension, Pregnancy-InducedSerotonin 5-HT3 Receptor AntagonistsFetal Growth RetardationDouble-Blind MethodProgesteronePremature BirthTreatment OutcomeInfertility, FemaleAbnormalities, Drug-InducedLactationFetal DevelopmentDeciduaFetusLabor, ObstetricObstetric Labor, PrematureCongenital AbnormalitiesRisk FactorsDrug Administration ScheduleTwinsTime FactorsPrenatal DiagnosisMaternal ExposureChorionic GonadotropinDiabetes, GestationalAbortion, TherapeuticTrophoblastsRetrospective StudiesAbortion, HabitualAbortifacient Agents, NonsteroidalInsemination, ArtificialDelivery, ObstetricFetal DiseasesPuerperal DisordersEndometriumSperm Injections, IntracytoplasmicFertilityInfant, Low Birth Weight