Putti MC, Pizzi M, Bertozzi I, et al. Bone marrow histology for the diagnosis of essential thrombocythemia in children: a multicenter Italian study. Blood. 2017;129(22):3040-3042.

On page 3040 in the 1 June 2017 issue, the descriptions of Figure 1A and B in the figure legend are reversed. The first sentence of the Figure 1 legend should read, “Figure 1. Representative histological features of pediatric cases with (A) ST, (B) ET, and (C) pre-PMF.” The error has been corrected in the online version, which now differs from the print version.