Myotonic DystrophyMuscular DystrophiesMyotonic DisordersTrinucleotide Repeat ExpansionMuscular Dystrophy, DuchenneTrinucleotide RepeatsCorneal Dystrophies, HereditaryMuscular Dystrophy, AnimalMyotoniaMuscular Dystrophy, FacioscapulohumeralFuchs' Endothelial DystrophyRNA-Binding ProteinsProtein-Serine-Threonine KinasesDNA Repeat ExpansionRetinal DystrophiesChromosomes, Human, Pair 19Muscle, SkeletalDystrophinPedigreeRepetitive Sequences, Nucleic AcidAlternative SplicingMyoblastsMyotonia CongenitaMuscular Dystrophy, Emery-DreifussMice, Inbred mdxLens DiseasesMutationChromosomes, Human, 19-20Base SequenceNeuroaxonal DystrophiesRNASarcoglycansMusclesExonsNeuromuscular Diseases3' Untranslated RegionsAnticipation, Genetic