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    "sources/dasilva2017-heavy-metals-coffee-brazil",
    "sources/demir2025-coffee-elements-turkiye",
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    "sources/efsa-arsenic-contam-2009",
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    "sources/efsa2015-nickel-food-water",
    "sources/el-daouk2020-aluminum-food-lebanon",
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    "sources/fsai2016-total-diet-study-ireland-2012-2014",
    "sources/guadalupe2023-peruvian-coffee-metals",
    "sources/kowalska2021-metals-herbs-spices-tea-coffee-poland",
    "sources/muntean2024-aquaculture-protein-flours-elements",
    "sources/noor2023-merapi-robusta-coffee-metals",
    "sources/pokorskaniewiada2024-polish-coffee-trace-elements",
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