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Hepatic H&E-stained sections of zebrafish. Control (A); 1 μg/L MC-LR (B); 5 μg/L MC-LR (C); 25 μg/L MC-LR (D); 100 μg/L BC (E); 1 μg/L MC-LR+ BC (F); 5 μg/L MC-LR + BC (G); and 25 μg/L MC-LR + BC (H). Pyknotic nuclei (black arrow), swollen hepatocytes (white arrowhead), and vacuolization (black arrowhead). Bar = 50 um.
