Muscular Atrophy, SpinalGenetic Diseases, InbornSpinal Muscular Atrophies of ChildhoodGenetic CounselingSurvival of Motor Neuron 1 ProteinAtrophySMN Complex ProteinsGenetic TestingMuscular AtrophySurvival of Motor Neuron 2 ProteinWilliams SyndromeSpinal CordMuscular Disorders, AtrophicMutationBulbo-Spinal Atrophy, X-LinkedSpinal Cord InjuriesNeuronal Apoptosis-Inhibitory ProteinHeterozygotePhenotypeCyclic AMP Response Element-Binding ProteinMotor NeuronsAnterior Horn CellsRNA-Binding ProteinsGenetic Predisposition to DiseaseNerve Tissue ProteinsSpinal Cord DiseasesOptic AtrophyMotor Neuron DiseaseRibonucleoproteins, Small NuclearDEAD Box Protein 20Chromosomes, Human, Pair 5Spinal Nerve RootsInjections, SpinalExonsDisease Models, AnimalSpinal NervesCoiled BodiesMultiple System AtrophyAnesthesia, SpinalReceptors, AndrogensnRNP Core ProteinsSpinal Cord NeoplasmsSpinal CanalSpinal DiseasesSpinal Cord CompressionMuscle, SkeletalSpinal NeoplasmsPedigreeMice, TransgenicBulbar Palsy, ProgressiveSpinal StenosisSpinal FusionElectromyographyNerve DegenerationCharcot-Marie-Tooth DiseaseMuscle WeaknessHeterozygote DetectionMagnetic Resonance ImagingContractureOlivopontocerebellar AtrophiesNeuromuscular DiseasesAxonsGlycine-tRNA LigaseArthrogryposisNeural ConductionGene DeletionVocal Cord ParalysisSpinal InjuriesGyrate AtrophyHomozygoteNeuromuscular JunctionTrinucleotide Repeat ExpansionNeuromuscular Junction DiseasesRNA SplicingAmyotrophic Lateral SclerosisSpinal Cord IschemiaGanglia, SpinalGenes, RecessiveSural NerveGeographic AtrophyGenetic LinkageGene DosageTrinucleotide RepeatsIntranuclear Inclusion BodiesGenes, DominantMyelographyMotor ActivityInclusion BodiesParaplegiaBrainFasciculationMyoclonic Epilepsies, ProgressiveChemistry, AnalyticSpineThoracic VertebraeUlnar NerveRespiratory ParalysisMusclesTuberculosis, SpinalPrenatal Diagnosis