TrisomyDown SyndromeGenetic Diseases, InbornChromosome DisordersChromosomes, Human, Pair 18KaryotypingPrenatal DiagnosisAbnormalities, MultipleChromosomes, Human, 16-18Bipolar DisorderChromosomes, Human, Pair 21Chromosomes, Human, Pair 13MosaicismChromosome AberrationsMental DisordersNuchal Translucency MeasurementAnxiety DisordersMood DisordersPregnancyChorionic Gonadotropin, beta Subunit, HumanFetal DiseasesMutationSyndromeChromosomes, Human, 6-12 and XChromosomes, Human, 13-15Nondisjunction, GeneticPregnancy Trimester, FirstMaternal AgeUltrasonography, PrenatalPedigreePhenotypeDiagnostic and Statistical Manual of Mental DisordersPregnancy Trimester, SecondPregnancy-Associated Plasma Protein-AChromosomes, Human, 21-22 and YNasal BoneIn Situ Hybridization, FluorescenceGenetic CounselingIntellectual DisabilityAneuploidyChromosome BandingWilliams SyndromeDermatoglyphicsPregnancy, High-RiskDepressive Disorder, MajorAutistic DisorderBone Diseases, DevelopmentalAmniocentesisMusculoskeletal AbnormalitiesInfant, NewbornAttention Deficit Disorder with HyperactivityCrown-Rump LengthChromosomes, Human, Pair 8Prader-Willi SyndromeTranslocation, GeneticMetabolism, Inborn ErrorsDepressive DisorderGenetic TestingMonosomyTurner SyndromeObsessive-Compulsive DisorderStress Disorders, Post-TraumaticChromosomes, Human, Pair 12Chromosomes, Human, Pair 7Chromosomes, Human, 19-20Genes, RecessiveNeckChorionic Villi SamplingChromosomes, Human, 4-5Sex Chromosome AberrationsDisease Models, AnimalPhobic DisordersHeterozygoteChild Development Disorders, PervasiveIron Metabolism DisordersPsychotic DisordersSubstance-Related DisordersGenetic ServicesMediterranean IslandsChromosomes, Human, Pair 22Gestational AgeChromosome MappingMicrocephalyAtaxia TelangiectasiaNeurofibromin 1Neurofibromatosis 1Molecular Sequence DataAllelesProgeriaCraniofacial AbnormalitiesEugenicsGenetic Predisposition to DiseasePachyonychia CongenitaEctodermal DysplasiaBloom SyndromeTuberous SclerosisChromosomes, Human, 1-3Conduct DisorderGenetic MarkersFetus