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Hepatocytes express ITPR3 in COVID‐19 liver specimens. (A) ITPR3 staining was not observed in hepatocytes in histologically normal controls. Note that ITPR3 staining is present in normal bile ducts (inset), which serves as a positive control for the stain. (B) In contrast, positive ITPR3 staining (brown) in hepatocytes was observed in each of 10 liver samples from patients with COVID‐19. Scale bar, 20 μm.
