Heeney MM, Guo D, De Falco L, et al. Normalizing hepcidin predicts TMPRSS6 mutation status in patients with chronic iron deficiency. Blood. 2018;132(4):448-452.

On page 448 in the 26 July 2018 issue, an author’s middle initial is incorrect. “Robert E. Klaassen” should read “Robert J. Klaassen.” In the author contribution list on page 452, “R.E.K.” should read “R.J.K.” The errors have been corrected in the online version of the article.