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MicroPET/CT images show differential trafficking of DCs and naïve CTLs over 7 days in wild-type mice. (a) DCs migrated to the spleen and liver after transiting the lungs (representative images of five experiments). (b) Naïve CTLs mainly homed to the spleen and lymph nodes (representative images of three experiments). Arrows indicate examples of lymph node accumulation of CTLs.
