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In situ hybridization analyses of Spp1 expression during liver regeneration. A, liver section at PH0. B, liver section at PH72. C, liver section at PH144. Spp1 mRNA is expressed only in biliary epithelial cells at PH0 (A), but is also expressed in some periportal hepatocytes at PH72 (B) and PH144 (C) (arrowheads). pv, portal vein. Bars indicate 20 µm.
