tokens: Selection and long-term persistence of reactive CTL clones during an EBV chronic response are determined by avidity , CD8 variable contribution compensating for differences in TCR affinities .
folded_tokens: selection and long-term persistence of reactive ctl clones during an ebv chronic response are determined by avidity , cd8 variable contribution compensating for differences in tcr affinities .
labels: O O O O O O B-cell_line I-cell_line O O B-other_name I-other_name I-other_name O O O O O B-protein_molecule O O O O O O B-protein_family_or_group O O