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Changes of ROS production levels and Cu contents in the lung. (A) ROS production levels in the lung by flow cytometry at 21 days of the experiment. (B) ROS production levels in the lung by flow cytometry at 42 days. (C) ROS production levels in the lung. (D) Cu contents in the lung at 42 days of the experiment. Data are presented with the mean± standard deviation (n=8). *p < 0.05, compared with the control group; **p < 0.01, compared with the control group.
