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Clinical characteristics in patients with and without C9ORF72 hexanucleotide repeat expansions
Abbreviations: ALS = amyotrophic lateral sclerosis; FTD = frontotemporal dementia; PBP = progressive bulbar palsy; PLS = primary lateral sclerosis; PMA = progressive muscular atrophy.
Includes 2 Native Americans and 2 Pacific Islanders.
