Developmental DisabilitiesIntellectual DisabilityAbnormalities, MultipleMicrocephalyMuscle HypotoniaSyndromeChromosome DuplicationEarly Intervention (Education)Child DevelopmentAutistic DisorderChromosome DeletionFaciesFailure to ThriveCraniofacial AbnormalitiesLanguage Development DisordersInfant, NewbornGrowth DisordersSegmental Duplications, GenomicComparative Genomic HybridizationCommunication DisordersPhenotypeFaceChromosome DisordersKaryotypingChromosomes, Human, Pair 15KaryotypeBrain Diseases, Metabolic, InbornSpasms, InfantileAgenesis of Corpus CallosumOsteopoikilosisEpilepsyPsychomotor DisordersIn Situ Hybridization, FluorescenceSymbolismTetrasomyEducation, NonprofessionalPregnancyMetabolism, Inborn ErrorsNervous System MalformationsHand Deformities, CongenitalTrisomyChromosome BandingPedigreeChromosomes, Human, Pair 22SeizuresCerebral PalsyChild Development Disorders, PervasiveConsanguinityMutationAsphyxia NeonatorumAngelman SyndromeBlepharophimosisRegression (Psychology)CraniosynostosesEye AbnormalitiesChromosomes, Human, Pair 2HaploinsufficiencyLearning DisordersDwarfismChromosomes, Human, Pair 16Motor SkillsChromosome BreakagePrader-Willi SyndromeKernicterusDNA Copy Number VariationsChromosomes, Human, Pair 1Chromosome AberrationsChild Behavior DisordersPlay and PlaythingsExomeSex Chromosome AberrationsCytogenetic AnalysisMalformations of Cortical DevelopmentPrenatal Exposure Delayed EffectsGenes, RecessiveTime FactorsEmbryo LossInfant, Premature, DiseasesPurine-Pyrimidine Metabolism, Inborn ErrorsFluoridationChromosomes, Human, Pair 6Foot Deformities, CongenitalChromosomes, Human, Pair 10Speech TherapyChromosomes, Human, Pair 13Magnetic Resonance ImagingGene DuplicationCongenital HypothyroidismBrainNeurocutaneous SyndromesDe Lange SyndromeAbnormalities, Drug-InducedParentingColobomaDown SyndromeHomozygoteChromosomes, Human, XDental Care for ChildrenChromosomes, Human, Pair 3Infant, Premature