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(Sh, Sh + EP) Normal histopathological examination of the lung tissues in Sh and Sh + EP groups. (S/C) Diffuse intra-alveolar edema (↑), intra-alveolar hemorrhage (▲), and leukocyte infiltration in the S/C group. (S/C + EP) Moderate intra-alveolar edema and alveolar epithelial thickening (↑) were observed in the S/C group that received EP. (Hematoxylin and Eosin, [H&E] ×200).
