Muscular Atrophy, SpinalSMN Complex ProteinsSurvival of Motor Neuron 1 ProteinSpinal Muscular Atrophies of ChildhoodSurvival of Motor Neuron 2 ProteinRibonucleoproteins, Small NuclearAtrophyMuscular AtrophySpinal CordMotor NeuronsNeuronal Apoptosis-Inhibitory ProteinCyclic AMP Response Element-Binding ProteinRNA-Binding ProteinsAnterior Horn CellsMuscular Disorders, AtrophicBulbo-Spinal Atrophy, X-LinkedNerve Tissue ProteinsSpinal Cord InjuriesDEAD Box Protein 20Chromosomes, Human, Pair 5ExonsSpinal Cord DiseasesCoiled BodiesDisease Models, AnimalMotor Neuron DiseasesnRNP Core ProteinsOptic AtrophyPedigreeHeterozygote DetectionMice, TransgenicMuscle, SkeletalPhenotypeGlycine-tRNA LigaseSpinal Nerve RootsInjections, SpinalGene DeletionNeuromuscular Junction DiseasesSpinal NervesRNA SplicingHomozygoteArthrogryposisMultiple System AtrophyAnesthesia, SpinalElectromyographyAxonsNeuromuscular JunctionContractureMutationNerve DegenerationReceptors, AndrogenCharcot-Marie-Tooth DiseaseNeuromuscular DiseasesGene DosageSpinal Cord NeoplasmsSpinal CanalMuscle WeaknessVocal Cord ParalysisSpinal DiseasesSpinal Cord CompressionGenes, RecessiveNeural ConductionChemistry, AnalyticSpinal NeoplasmsFasciculationGenetic LinkageGenes, DominantPrenatal DiagnosisSpliceosomesGenetic CounselingMagnetic Resonance Imaging