Nonpermissive HLA-DPB1 disparity is a significant independent risk factor for mortality after unrelated hematopoietic stem cell transplantation. - Crocchiolo R; Zino E; Vago L; Oneto R; Bruno B; Pollichieni S; Sacchi N; Sormani MP; Marcon J; Lamparelli T; Fanin R; Garbarino L; et al. (Blood, 2009)