On page 3124 in the 23 June 2016 issue, reference 20 cites the incorrect source. It should read "Furlan SN, Watkins B, Tkachev V, et al. Transcriptome analysis of GVHD reveals aurora kinase A as a targetable pathway for disease prevention. Sci Transl Med. 2015;7(315): 315ra191." The error has been corrected in the online version, which now differs from the print version.