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. 2021 Aug 31;18(1):4–19. doi: 10.1007/s12024-021-00414-9

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© The Author(s) 2021, corrected publication 2021

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Fig. 3 — A, B Immunohistochemical reaction of IL-1β in group of COVID-19-related death showed a wide endothelial expression and positivity (brown reactions indicated with black arrows) in lung samples (× 60, × 100); Insert in (a): control case (× 60); C, D IL-6 showed a strong (black arrows) and diffusely positive reactions in capillary-alveolar endothelial cells in the COVID-19 group, expressed by brown dots in the endothelial cells than the negative control case (× 80, × 40); Insert in (c): control case (× 60)