tokens: The slight increase in the percentage of CD4+CD45R0+ cells remained significant even after covariant analysis taking age-related changes into account .
folded_tokens: the slight increase in the percentage of cd4+cd45r0+ cells remained significant even after covariant analysis taking age-related changes into account .
labels: O O O O O O O B-cell_type I-cell_type O O O O O O O O O O O O