['Table', '1', 'Induction', 'of', 'ethoxyresorufin', 'deethylase', 'activity', '(EROD)', 'in', 'cultured', 'chick', 'hepatocytes:', 'effect', 'of', 'cocultivation', 'with', 'A,', 'cells', 'Treatment', 'Ethoxyresorufin', 'deethylase,', 'nmoles', 'per', 'min', 'per;', 'mg', 'protein', 'nmole', 'P450', '-AL', '+Ap', '-Ap', '+A,', 'DMSO,', '2', 'ul,ml', '6', '10', '0.18', '0.29', 'MCA,', '1', 'pg/ml', '100', '103', '1.09', '0.84', '5', 'pg/ml', '64', '38', '1.23', '0.94', '10', 'pg/ml', '19', '18', '0.38', '0.39', '10', 'pg/ml', '78', '42', '1.08', '0.88', 'Hepatocytes', 'were', 'cultured', 'with', 'or', 'without', 'A,', 'cells', 'as', 'described', 'in', 'Methods,', 'then', 'exposed', 'overnight', 'to', 'MCA', 'or', 'B(a)P', 'before', 'harvest', 'and', 'assay', 'for', 'EROD', 'activity.', 'Each', 'value', 'is', 'the', 'mean', 'of', 'duplicate', 'treatments', 'with', 'the', 'individual', 'values', 'viryinig', 'by', 'no', 'more', 'than', '10%', 'of', 'the', 'mean', 'except', 'for', 'hepatocytes', 'exposed', 'to', 'DMSO', 'in', 'the', 'absence', 'of', 'A', 'cells', 'where', 'the', 'individual', 'values', 'were', '0', 'and', '13', 'nmoles/min/mg/protein.', 'Se91', 'Itrrg']