Kim W, Klarmann KD, Keller JR. Gfi-1 regulates the erythroid transcription factor network through Id2 repression in murine hematopoietic progenitor cells. Blood. 2014;124(10):1586-1596.

In the supplemental materials for the article beginning on page 1586 in the 4 September 2014 issue, there were errors in supplemental Figure 4. In the middle column of supplemental Figure 4D and G, the x-axis read “B220.” It should read “IgM.” The y-axis read “CD19.” It should read “B220.” In supplemental Figure 4E and H, the x-axis labels for the B-cell data read “CD19⁺B220⁻” and “CD19⁺B220⁺.” They should read “B220⁺IgM⁻” and “B220⁺IgM⁺.” The errors and the corresponding text in the legend to supplemental Figure 4 have been corrected in the online data supplement.