Muscular Atrophy, SpinalSpinal Muscular Atrophies of ChildhoodSurvival of Motor Neuron 1 ProteinSMN Complex ProteinsSurvival of Motor Neuron 2 ProteinMuscular AtrophyCyclic AMP Response Element-Binding ProteinAtrophyRNA-Binding ProteinsSpinal CordRespiratory Distress Syndrome, AdultNerve Tissue ProteinsNeuronal Apoptosis-Inhibitory ProteinRespiratory Distress Syndrome, NewbornExonsMotor NeuronsAnterior Horn CellsMuscular Disorders, AtrophicBulbo-Spinal Atrophy, X-LinkedSpinal Cord InjuriesRibonucleoproteins, Small NuclearDEAD Box Protein 20Chromosomes, Human, Pair 5Spinal Cord DiseasesCoiled BodiesDisease Models, AnimalMotor Neuron DiseasesnRNP Core ProteinsOptic AtrophyPedigreeHeterozygote DetectionInfant, NewbornMice, TransgenicMuscle, SkeletalGlycine-tRNA LigaseRespiration, ArtificialSpinal Nerve RootsInjections, SpinalGene DeletionPhenotypeHomozygoteNeuromuscular Junction DiseasesSpinal NervesRNA SplicingArthrogryposisPulmonary SurfactantsMultiple System AtrophyElectromyographyAnesthesia, SpinalAxonsNeuromuscular JunctionContractureNerve DegenerationMutationReceptors, AndrogenCharcot-Marie-Tooth DiseaseNeuromuscular DiseasesGene DosageSpinal Cord NeoplasmsMuscle WeaknessSpinal CanalPrenatal DiagnosisVocal Cord ParalysisSpinal DiseasesSpinal Cord CompressionAcute Lung InjuryPositive-Pressure RespirationGenes, RecessiveNeural ConductionRespiratory ParalysisChemistry, AnalyticGenes, DominantGenetic LinkageSpinal NeoplasmsFasciculationMagnetic Resonance ImagingGenetic CounselingSpliceosomesAmyotrophic Lateral SclerosisAlternative SplicingBulbar Palsy, ProgressiveSpinal StenosisGenetic TestingSpinal FusionTime Factors