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The effects of bleomycin (BLE), chronic intermittent hypoxia (CIH), and pirfenidone (PF) on lung morphology. NOR: normoxia. Representative photomicrographs of lung tissues represent stained tissues with hematoxylin and eosin. Vascular morphology (upper panels) or peribronchial morphology (bottom panels) were observed as a measure of lobular inflammation (×200).
