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Microscopic examination of liver tissue from 2-octynoic acid-bovine serum albumin (2OA-BSA) with natural killer (NK)1·1 antibody and control immunoglobulin. (a) Light microscopy (×400) with NK1·1 antibody shows mild infiltration of lymphocytes in portal tracts, particularly surrounding damaged intralobular bile ducts. (b) Light microscopy (×400) with control immunoglobulin demonstrates similar findings to those shown in (a).
