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INTRODUCTION The study of mental retardation is one of the most complex fields in human genetics due to its high degree of clinical and genetic heterogeneity. About 50% of cases of mental retardation(More)
Friedreich ataxia (FRDA) is the most common hereditary ataxia that is caused mainly by an unstable GAA trinucleotide expansion in the first intron of the frataxin gene. Molecular tests for FRDA(More)
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