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The tissue damage and organelle injuries under light and electron microscopy. (A) Tissue structure of normal esophagus (magnification, ×400). (B) Damaged esophageal tissue following radiation (magnification, ×400). (C) Structure of organelles in basal cell of normal esophageal tissue (magnification, ×20,000). (D) Structure of organelles in the endothelium of radiated esophageal tissue (magnification, ×20,000).
