Myotonic DystrophyHuntington DiseaseMuscular DystrophiesTrinucleotide Repeat ExpansionMyotonic DisordersTrinucleotide RepeatsMuscular Dystrophy, DuchenneCorneal Dystrophies, HereditaryMuscular Dystrophy, AnimalMyotoniaMuscular Dystrophy, FacioscapulohumeralFuchs' Endothelial DystrophyRNA-Binding ProteinsPedigreeChromosomes, Human, Pair 4Protein-Serine-Threonine KinasesDNA Repeat ExpansionRetinal DystrophiesChromosomes, Human, Pair 19Muscle, SkeletalDystrophinNerve Tissue ProteinsMutationRepetitive Sequences, Nucleic AcidAge of OnsetAlternative SplicingDisease Models, AnimalMyoblastsMice, TransgenicMyotonia CongenitaMuscular Dystrophy, Emery-DreifussAllelesGenetic TestingPhenotypeBase SequenceMice, Inbred mdxNuclear ProteinsLens DiseasesGenetic LinkageExonsChromosomes, Human, 19-20Heterozygote DetectionNeuroaxonal DystrophiesMolecular Sequence DataRNASarcoglycansMusclesQuinolinic AcidGenetic MarkersBrainDNANeuromuscular Diseases3' Untranslated RegionsAnticipation, Genetic