UltrasonographyPrenatal Exposure Delayed EffectsPrenatal DiagnosisPrenatal CareUltrasonography, PrenatalUltrasonography, Doppler, ColorPregnancyUltrasonography, DopplerFetal DiseasesEndosonographyUltrasonography, Doppler, DuplexUltrasonography, Doppler, PulsedUltrasonography, MammaryInfant, NewbornGestational AgeUltrasonography, InterventionalSensitivity and SpecificityUltrasonography, Doppler, TranscranialAmniocentesisProspective StudiesFetusMaternal ExposureChorionic Villi SamplingSulfur HexafluoridePregnancy Trimester, SecondTomography, X-Ray ComputedAbortion, EugenicPregnancy OutcomeContrast MediaRetrospective StudiesPregnancy ComplicationsImaging, Three-DimensionalReproducibility of ResultsPredictive Value of TestsPregnancy Trimester, ThirdUrographyScrotumPrenatal InjuriesFetal DevelopmentBlood Flow VelocityHydronephrosisCystsPregnancy Trimester, FirstMagnetic Resonance ImagingEchoencephalographyCongenital AbnormalitiesRisk FactorsBirth WeightAbnormalities, MultipleFetal DeathAbortion, TherapeuticFetal Alcohol Spectrum DisordersFetal HeartMaternal-Fetal ExchangeAbdomenFollow-Up StudiesPalpationCarotid Artery DiseasesOvarian CystsAbortion, InducedVaginaGenetic CounselingPreoperative CareMaternal-Fetal RelationsToe JointThyroid NoduleCarotid ArteriesPolyhydramniosGallbladderMetacarpophalangeal JointPregnant WomenObserver VariationImage EnhancementLiver NeoplasmsDown SyndromeFalse Positive ReactionsMaternal AgeTime FactorsLymphangioma, CysticAbdominal InjuriesChromosome DisordersSplenic DiseasesDiagnostic ImagingTesticular DiseasesTreatment OutcomePregnancy, High-RiskInfant, Low Birth WeightAuscultationMothersMaternal BehaviorCohort StudiesRectumUterusDilatation, PathologicPregnancy TrimestersGallbladder DiseasesHeterozygote DetectionAngiographyOvarian FollicleFetal Growth Retardation