Expanding the global prevalence of spinocerebellar ataxia type 42

In the Clinical/Scientific Note “Expanding the global prevalence of spinocerebellar ataxia type 42” by Ngo et al.,¹ the first and fourth authors' names are missing their middle initials, which should read Kathie J. Ngo and Jason A. Chen, respectively. The publisher regrets the omission. There is also a small typo in the Methods section, which should read, “…with estimated minor allele frequencies drawn from HapMap3 project Centre d'Etude du Polymorphisme Humain—Utah population data.” The authors regret the error.