CD4 and breast cancer: In addition, we observed no significant difference in absolute lymphocyte counts, relative cell counts of different subsets of lymphocytes (i.e. percentage of CD4 + TC, CD8 + TC, BC and NK) and absolute CD8 + TC between groups after aHSCT in the reconstitution of the immune system following aHSCT (Fig. 1A,C,D,E,G).