Variations in donor myeloid and T-cell engraftment posttransplant and relationship with CSA reduction and DLI. (A) Patient 4: poor T-cell engraftment (maximum, 40%) followed by graft rejection despite CSA withdrawal and DLI. (B) Patient 10: rapid and complete donor T-cell engraftment by week 3; prolonged mixed myeloid chimerism (initially predominantly recipient) reaching 100% donor by week 17 after CSA withdrawal. (C) Patient 12: partial T-cell engraftment increasing to 100% donor after CSA withdrawal and DLI followed by complete donor myeloid engraftment by week 12.