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A, B, Representative Prussian blue–stained slices from left popliteal LNs 24 hours after injection for, A, mice in the 1-million dendritic cell injection group, and, B, mice in the 2-million dendritic cell injection group. C, Bar graph shows that there was significantly greater positive staining in the 2-million dendritic cell injection group than in the 1-million dendritic cell injection group. * = P < .05. Scale bars = 50 μm.
