GVHD scores in target organs of B10.BR recipients pretreated with PBS or KGF on days −6, −5, and −4 pre-BMT, conditioned with Cy/TBI (days −3, −2, and −1) or TBI alone (day −1), and transplanted with C57BL/6 BM with 15 × 10⁶spleen cells. Scores are averages of 3 mice/group on days 5, 14, and 38 post-BMT. (†) indicates that all mice in the group had died by this time point. (0) indicates that all mice in the group exhibited normal histological appearance of the target organ. (▧) BMS + PBS, (▨) BMS + CY + PBS, (▪) BMS + KGF, (▨) BMS + CY + KGF.