Sun C, Tian X, Lee YS, et al. Partial reconstitution of humoral immunity and fewer infections in patients with chronic lymphocytic leukemia treated with ibrutinib. Blood. 2015;126(19):2213-2219.

On page 2213 of the 5 November 2015 issue, the clinical trial number “#NCT015007330” should read “#NCT01500733.” The error has been corrected in the online version, which now differs from the print version.