RDH5 and Friedreich ataxia: To further verify that this variant has not been previously reported in association with FA, PubMed was searched using the following search terms, without result: “RDH5 AND c.814_815del,” “RDH5 AND p.Leu272Aspfs ∗63,” “c.814_815del,” and “p.Leu272Aspfs ∗63.” The Human Gene Mutation Database was also searched without a matching result under small deletions and gross deletions in the RDH5 gene.