Median percentage donor chimerism among nucleated marrow cells and peripheral blood granulocytes and T cells among evaluable patients. There were 77 patients studied at day 28, 68 on day 56, 60 on day 84, 44 on day 180, 29 on day 365, and 15 on day 540 (A). ♦ indicates granulocytes; ▴, marrow mononuclear cells; and ▪, T cells (CD3⁺). Median percentage donor chimerism among peripheral blood T cells in recipients given G-PBMCs versus those given marrow (B).