Fig. 1.
Blood cell chimerism as determined at various time points after BMT.
Red blood cell chimerism was analyzed by quantitative blood group determination. Mixed chimerism of unseparated and of fluorescence-activated cell-sorted subpopulations of leukocytes was determined quantitatively, using multiplex amplification of short tandem repeat markers and fluorescence detection.10 The arrows depict the dates of donor T-cell infusions (first dose: 1 × 106/kg; second dose 2 × 106/kg; subsequent doses 1 × 107/kg).