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Scoring of pathological changes in guinea pig lung tissue. There was no significant difference by two-way ANOVA. (a) Inflammatory cell infiltration. (b) Alveolar epithelial cell hyperplasia. (c) Hyperplasia of bronchial epithelial cells. (d) Alveolar hemorrhage. (e) Detachment of bronchial epithelial cells Score. (f) Necrosis of bronchial epithelial cells.
