title: Parkinson's disease, amyotrophic lateral sclerosis and spinal muscular atrophy are caused by an unstable (CAG)n trinucleotide repeat microsatellite.
authors.forename: K M
authors.initials: KM
authors.lastname: Fischer
mesh_terms: D017668:Age of Onset; D000690:Amyotrophic Lateral Sclerosis / Q000453:epidemiology / Q000235:genetics*; D000818:Animals; D008040:Genetic Linkage; D006801:Humans; D008540:Meiosis / Q000235:genetics; D009134:Muscular Atrophy, Spinal / Q000453:epidemiology / Q000235:genetics*; D010300:Parkinson Disease / Q000453:epidemiology / Q000235:genetics*; D019680:Trinucleotide Repeat Expansion