Research Article
Assessment of Pulmonary Toxicity Induced by Inhaled Toner with External Additives
Figure 7
Myeloperoxidase stain of lung sections at 12-month exposure. (a) Lung of negative control. (b) 1 mg/m3 toner-exposed lung. (c) 4 mg/m3 toner-exposed lung. (d) 16 mg/m3 toner-exposed lung.
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