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CD4+ T cells accumulate in the intestinal LP independent of CCR7. Comparison of TCRβ+ CD4+ cell frequencies in the SI and LI LP between Ccr7+/+ and Ccr7-/- mice. Data are representative of 2 independent experiments with n = 4 mice per group. Error bars represent SEM. *P ≤ .05; NS, P > .05 using the Student t test.
