DNA Repeat ExpansionFrontotemporal DementiaAmyotrophic Lateral SclerosisTrinucleotide Repeat ExpansionFrontotemporal Lobar DegenerationRepetitive Sequences, Nucleic AcidTrinucleotide RepeatsProteinsAge of OnsetChromosomes, Human, Pair 9Base SequenceTandem Repeat SequencesPedigreeMolecular Sequence DataDNAMyotonic DystrophyFriedreich AtaxiaNucleic Acid ConformationTelomereSpinocerebellar DegenerationsMicrosatellite RepeatsSpinocerebellar AtaxiasFragile X SyndromeDNA-Binding ProteinsHuntington DiseaseMinisatellite RepeatsMutationFragile X Mental Retardation ProteinPolymerase Chain ReactionPoly ARepetitive Sequences, Amino AcidInverted Repeat SequencesAmino Acid SequenceRahnella