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Histology of renal glomeruli in rats toploading with NanoRBC (a), LactRing (b), SFHb (c), PolyHb (d) or RBC (e). Under light microscope, the renal glomeruli in rats of all groups did not show abnormality with normal number of renal glomeruli, no glomerular necrosis, distention or degeneration. H&E staining, ×400.
