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The author observed the behavior of inflammatory cells in the primary intension of incisional wound on the Albino rat palate. The superficial wounds (0.5mm depth) were made anteroposterior lineally by surgical knife. They were sacrified on 4, 8, 12, 16, 24, 48, 72 and 120 hr after wounding. The specimens were fixed in 2.5% glutaraldehyde in 0.1 M cacodylate buffer and 1% osmic acid in 0.1M cacodylate buffer, and embeddd in Epon 812. Ultrathin sections were obtained by LKB 8800, and stained with uranyl acetate/lead citrate, and observed with Corynth 500 EM.
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