FANCA and Friedreich ataxia: In the series the single nucleotide polymorphisms (SNP); Exon9,c.796A > G(p.Thr266Ala), Exon16,c.1501G > A(p. Gly501Ser), Exon26, c.2426G > A(p.Gly809Asp), of FANCA gene also observed in 23 patients, and these polymorphisms in disease association was reported in FA database.