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Naive T cells in Tgfb2+/- mice. Fraction of naive (CD44lowCD45RB+) cells of the CD4 and CD8 populations in the peripheral blood of 8-week-old (A) and 12-month-old (B) Tgfb2+/- mice and wt littermates. Each connected pair of data points represents the average of 2 to 4 Tgfb2+/- and wt members of a litter.
