Impact of chronic graft-versus-host disease (GVHD) on the outcome of the patients: (A) overall survival; (B) disease-free survival; and (C) relapse. (——) Patients who developed chronic GVHD. (•••) Patients who did not develop chronic GVHD.
 Reprinted with permission from Valcarcel D et al. J Clin Oncol. 2008;26:577–584.¹⁶