Muscle HypotoniaInfant, NewbornInfant, PrematureAbnormalities, MultipleIntellectual DisabilityInfant, Premature, DiseasesInfant CareInfant FoodFaciesSyndromePrader-Willi SyndromeInfant FormulaInfant BehaviorDevelopmental DisabilitiesInfant MortalitySudden Infant DeathMyopathies, Structural, CongenitalInfant, Newborn, DiseasesInfant Nutritional Physiological PhenomenaMicrocephalyMyopathies, NemalineInfant, Very Low Birth WeightAtaxiaMuscle HypertoniaInfant, Low Birth WeightFailure to ThriveChromosomes, Human, XMyopathy, Central CoreChromosome DeletionPsychomotor DisordersMental Retardation, X-LinkedConsanguinityBreast FeedingInfant WelfareSex Chromosome DisordersPedigreeBarth SyndromePregnancyCytochrome-c Oxidase DeficiencyChromosomes, Human, Pair 15Kidney Diseases, CysticOculocerebrorenal SyndromeCerebellar DiseasesInfant, Extremely Low Birth WeightPhenotypeSpinal Muscular Atrophies of ChildhoodSuccinate-Semialdehyde DehydrogenaseChild DevelopmentCongenital Disorders of GlycosylationMilk, HumanGenes, RecessiveGestational AgeAmino Acid Metabolism, Inborn ErrorsChromosomes, Human, Pair 22Muscular DiseasesInfant, Extremely PrematureGrowth DisordersInfant, Small for Gestational AgeChromosome DisordersFaceAcidosis, LacticBottle FeedingEye AbnormalitiesIn Situ Hybridization, FluorescenceSeizuresKaryotypingComparative Genomic HybridizationBirth WeightMutationIntensive Care Units, NeonatalCerebellar AtaxiaCryingMutation, MissenseFatal OutcomeMuscular DystrophiesMuscle TonusDown SyndromeHomozygoteMothersChromosomes, Human, Pair 4Brain DiseasesGene DuplicationInfant Nutrition DisordersBrainRespiratory Distress Syndrome, NewbornBronchopulmonary DysplasiaChromosome BandingMagnetic Resonance ImagingInfectious Disease Transmission, VerticalTranslocation, GeneticIntensive Care, NeonatalDNA Mutational AnalysisChromosome AberrationsIncubators, InfantElectromyographyCerebellumInfant Equipment