The complex structure of ATXN2 genetic variation

In the editorial, “The complex structure of ATXN2 genetic variation,” by Pulst¹, first published online December 6, 2018, the reference for Tojima et al.’s article should read: 1. Tojima M, Murakami G, Hikawa R, et al. Homozygous 31 trinucleotide repeats in the SCA2 allele are pathogenic for cerebellar ataxia. Neurol Genet 2018;4:e283. DOI: 10.1212/NXG.0000000000000283. The publisher regrets the error.