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. 2022 Feb 3;37(1):e2022002. doi: 10.5620/eaht.2022002

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Copyright © 2022 The Korean Society of Environmental Health and Toxicology & Korea Society for Environmental Analysis

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited

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Light micrograph of heart with H&E x40: Group 1 shows missive degeneration of myocardium (white arrow), and vaculation of nucleus (black arrow); Group 2 shows normal striate myocardium fibers (white arrow), central nuclei (black arrow) and sarcolemma (red arrow); Group 3 shows little of myocardium degeneration (white arrow), and vacuolation of nuclei (black arrow); Group 4 shows large area of degeneration (white arrows) and undergoes the nuclei (black arrow) and sacrolemma to vacuolation (red arrow); Group 5 shows normal structures of myocardium (white arrows), and normal sarcolemma (black arrows); Group 6 shows normal myocardium architecture, striated myocyte (white arrows) and central nucleus (black arrow) and sarcolemma (red arrow).