Leddin M, Perrod C, Hoogenkamp M, et al. Two distinct auto-regulatory loops operate at the PU.1 locus in B cells and myeloid cells. Blood. 2011;117(10):2827–2838.

On page 2827 in the 10 March 2011 issue, the superscript number indicating the affiliation for the eleventh author (Mosammam) is incorrect (⁵Department of Haematology, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom). The correct superscript number is 2 and Mosammam's correct affiliation is ²Leeds Institute for Molecular Medicine, University of Leeds, Leeds, United Kingdom. The error was corrected in the online version, which now differs from the print version.