AneuploidyTrisomyChromosomes, Human, Pair 18In Situ Hybridization, FluorescenceChromosome DisordersChromosomes, Human, XPrenatal DiagnosisSex Chromosome DisordersPreimplantation DiagnosisChromosomes, Human, Pair 21Polar BodiesKaryotypingChromosomes, Human, Pair 13Chorionic Villi SamplingChromosome AberrationsChromosomes, Human, YSex Chromosome AberrationsAmniocentesisChromosomes, HumanDiploidyMosaicismKlinefelter SyndromeDown SyndromePregnancySpermatozoaXYY KaryotypeMaternal AgeFetal DiseasesChromosomal InstabilityLymphangioma, CysticInfertility, MalePregnancy Trimester, FirstY ChromosomeSex ChromosomesGene DosageMeiosisComparative Genomic HybridizationAmniotic FluidTurner SyndromeNuchal Translucency MeasurementCytogenetic AnalysisChromosome SegregationFetusGenetic TestingPregnancy-Associated Plasma Protein-APloidiesChorionic Gonadotropin, beta Subunit, HumanUltrasonography, PrenatalAbortion, SpontaneousChromosomesX ChromosomeFertilization in VitroChorionic VilliAbnormal KaryotypePolyploidyDNA ProbesNondisjunction, GeneticOocytesAneugensTranslocation, GeneticPolymerase Chain ReactionGestational AgeDNACentrosomeMad2 ProteinsSensitivity and SpecificityKaryotypeMitosisFalse Positive ReactionsSpindle ApparatusGenomic InstabilityMetaphaseChromosome MappingOligonucleotide Array Sequence AnalysisDNA, NeoplasmPrimed In Situ LabelingCytogeneticsAurora KinasesOligospermiaSpectral KaryotypingMaternal Serum Screening Tests