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Assessment of systemic toxicity of Fiber-Rop/Gel-Clo composite in rats. (A) H&E staining of the heart, liver, spleen, lung, kidney, and brain (hippocampus CA1); scale bar, 200 μm. (B) The serum levels of CK-MB, LDH, AST, ALT, Cr, and BUN among the seven groups. The light gray backgrounds indicate the upper normal limit.
