Muscular Atrophy, SpinalSpinal Muscular Atrophies of ChildhoodSurvival of Motor Neuron 1 ProteinSMN Complex ProteinsSurvival of Motor Neuron 2 ProteinBrachial Plexus NeuritisMuscular AtrophyCyclic AMP Response Element-Binding ProteinAtrophyRNA-Binding ProteinsSpinal CordNerve Tissue ProteinsNeuronal Apoptosis-Inhibitory ProteinExonsMotor NeuronsAnterior Horn CellsMuscular Disorders, AtrophicBulbo-Spinal Atrophy, X-LinkedSpinal Cord InjuriesRibonucleoproteins, Small NuclearDEAD Box Protein 20Chromosomes, Human, Pair 5Respiratory ParalysisElectromyographySpinal Cord DiseasesCoiled BodiesNeural ConductionMuscle WeaknessMotor Neuron DiseasesnRNP Core ProteinsPedigreeDisease Models, AnimalOptic AtrophySural NerveSeptinsHeterozygote DetectionMuscle, SkeletalGlycine-tRNA LigaseMice, TransgenicMuscular DiseasesSpinal Nerve RootsInjections, SpinalPhenotypeGene DeletionMagnetic Resonance ImagingNeuromuscular Junction DiseasesSpinal NervesHomozygoteRNA SplicingArthrogryposisMultiple System AtrophyAnesthesia, SpinalUpper ExtremitySpondylosisAxonsNeuromuscular JunctionContractureNerve DegenerationReceptors, AndrogenCharcot-Marie-Tooth DiseaseNeuromuscular DiseasesMutationGene DosageCervical VertebraeSpinal Cord NeoplasmsSpinal CanalVocal Cord ParalysisSpinal DiseasesSpinal Cord CompressionGenes, RecessiveChemistry, AnalyticGenes, DominantGenetic LinkageSpinal NeoplasmsFasciculationPrenatal DiagnosisGenetic CounselingSpliceosomesAmyotrophic Lateral SclerosisAlternative SplicingBulbar Palsy, ProgressiveSpinal StenosisSpinal Fusion