Post-BMT DC counts from 35 patients (filled symbols) were subdivided on the basis of the three criteria indicated. The mean DC number for each patient group is shown (solid line). The mean (dashed line) and the limits of the normal range (dotted lines) are shown for comparison. Mean DC numbers were similar after autologous and allogeneic grafts. The mean DC number for the patients with aGVHD was significantly lower than the other postallogeneic stem cell transplant patients (see text).