Presence and persistence of dominant TCR clonotypes after allo-BMT. Longitudinal analysis of TCR CDR3 size distribution patterns in UPN 272 (transplantation group I) at 6, 10, 14, 28, and 52 weeks after the TCD allo-BMT. Shown are spectratypes of TCRBV3, TCRBV5, TCRBV9, and TCRBV19 in the CD4⁺ as well as in the CD8⁺ T-cell subsets