Table of contents. Blood. 2018;131(18):ix-x.

On the first page of the table of contents of the 3 May 2018 issue, the description of the cover figure should read, “Topical ruxolitinib protects hair follicle stem cells expressing both cytokeratin 15 (red) and Lgr5⁺ (green) at the base of hair follicles against graft-versus-host disease after experimental allogeneic hematopoietic stem cell transplantation. See the article by Takahashi et al on page 2074.” The error has been corrected on the issue’s “About the Cover” web page.