AmniocentesisAmniotic FluidChorionic Villi SamplingPrenatal DiagnosisBibliometricsJournal Impact FactorPeriodicals as TopicPregnancy Trimester, SecondPregnancyFetal DiseasesDown SyndromeChromosome DisordersPublicationsPublishingCordocentesisUltrasonography, PrenatalMaternal AgeDatabases, Bibliographicalpha-FetoproteinsMEDLINEAuthorshipRh IsoimmunizationPregnancy, High-RiskAbstracting and Indexing as TopicPubMedMedical Subject HeadingsGestational AgeTest Anxiety ScaleEstriolChorioamnionitisGenetic CounselingBibliography as TopicAbortion, EugenicTrisomyKaryotypingCustodial CareLymphangioma, CysticChromosome AberrationsCongenital AbnormalitiesPeer Review, ResearchSex Chromosome AberrationsFetal DeathAbortion, SpontaneousBiological DressingsFetal Membranes, Premature RuptureJournalism, MedicalPregnancy, TwinPregnancy Trimester, FirstAbortion, InducedBiomedical ResearchObstetric Labor, PrematureInformation Storage and RetrievalPregnant WomenGovernment Publications as TopicPregnancy OutcomeEditorial PoliciesScienceIatrogenic DiseaseAneuploidyErythroblastosis, FetalReference BooksAmnionNeural Tube DefectsBiobibliography as TopicAbortion, TherapeuticFetal Organ MaturityBooksEncyclopedias as TopicTwinsFoot Deformities, CongenitalBlood Transfusion, IntrauterineFreedomPregnancy, MultipleInfant, NewbornSex Determination AnalysisPlagiarismKaryotypeResearch PersonnelResearchReview Literature as TopicFetusSubject HeadingsMosaicismFetofetal TransfusionMEDLARS