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. 2021 Apr 6;91(3):690–698. doi: 10.1038/s41390-021-01488-5

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© The Author(s) 2021

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Fig. 2 — Correlation matrix with darker shades of grey indicating stronger positive correlations between the compounds. PCB polychlorinated biphenyls, DDT dichlorodiphenyltrichlorethane, DDE dichlorodiphenyldichloroethylene.