GVHD. (A-B) Cumulative incidences of grade 3-4 acute GVHD (A) and chronic GVHD (B) of the UM171 CB cohort (UM171) and the CIBMTR CB controls (UCB). (C-D) Cumulative incidences of grade 3-4 acute GVHD (C) and chronic GVHD (D) of the UM171 CB cohort appear lower than those reported for the CIBMTR MUD PBSC controls (PBSC) by Gray test.