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ED1 and ED2+ cells in rat liver after irradiation. A: sham-irradiated ED1 cells (C) 6 hours after treatment. B: sham-irradiated ED2 cells (D) 6 hours after treatment. ED1+ (E) and ED2+ (F) cells were also counted and no significant difference was observed in portal vessels at different time points after rat liver irradiation. Results represent mean value of three animals and six slides per time point. Original magnification, ×100. Scale bar = 100 μm.
