Muscular Atrophy, SpinalSpinal Muscular Atrophies of ChildhoodSurvival of Motor Neuron 1 ProteinAtrophySMN Complex ProteinsMuscular AtrophySurvival of Motor Neuron 2 ProteinSpinal CordMuscular Disorders, AtrophicBulbo-Spinal Atrophy, X-LinkedSpinal Cord InjuriesNeuronal Apoptosis-Inhibitory ProteinCyclic AMP Response Element-Binding ProteinMotor NeuronsAnterior Horn CellsRNA-Binding ProteinsNerve Tissue ProteinsSpinal Cord DiseasesOptic AtrophyMotor Neuron DiseaseRibonucleoproteins, Small NuclearDisease Models, AnimalDEAD Box Protein 20Genetic Predisposition to DiseaseDiseaseExonsGenetic Diseases, InbornGenome-Wide Association StudyChromosomes, Human, Pair 5Spinal Nerve RootsInjections, SpinalSpinal NervesGenetic LinkagePedigreeCoiled BodiesPhenotypeMultiple System AtrophyAnesthesia, SpinalPolymorphism, Single NucleotideGenome, HumanReceptors, AndrogensnRNP Core ProteinsGenetic TestingSpinal Cord NeoplasmsSpinal CanalGenotypeSpinal DiseasesSpinal Cord CompressionMuscle, SkeletalGenetic VariationSpinal NeoplasmsHaplotypesFounder EffectMutationAllelesMagnetic Resonance ImagingMice, TransgenicBulbar Palsy, ProgressiveGenetics, MedicalSpinal StenosisChromosome MappingModels, GeneticMultifactorial InheritanceSpinal FusionElectromyographyNerve DegenerationCharcot-Marie-Tooth DiseaseMuscle WeaknessHeterozygote DetectionGenetic MarkersLinkage DisequilibriumContractureOlivopontocerebellar AtrophiesGene DosageNeuromuscular DiseasesAxonsGlycine-tRNA LigaseArthrogryposisNeural ConductionGene DeletionVocal Cord ParalysisRare DiseasesSpinal InjuriesGyrate AtrophyHomozygoteGene FrequencyNeuromuscular JunctionTrinucleotide Repeat ExpansionNeuromuscular Junction DiseasesRNA SplicingMutation, MissenseAmyotrophic Lateral SclerosisSpinal Cord IschemiaGanglia, SpinalGenes, RecessiveMolecular Sequence DataPolymerase Chain ReactionSural NerveCase-Control StudiesGeographic Atrophy