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    "sources/clair-caliot2021-arsenic-irrigated-vegetables-burkina",
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    "sources/efsa2021-aluminium-food-qa",
    "sources/emmanuel2025-kano-urban-vegetables-metals",
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    "sources/ewubare2024-academic-review-heavy-metals-environment",
    "sources/fatai2024-african-spinach-tomato-nigeria",
    "sources/fda-ctz-Pb-babyfood-2025",
    "sources/fda-tds-elements-2018-2020",
    "sources/ghasemidehkordi2018-markazi-vegetables-pb-hg",
    "sources/hossain2016-bangladesh-vegetables-pb-cd-cr",
    "sources/imongben2026-kaduna-vegetables-hra",
    "sources/kurniawati2021-jakarta-staple-foods-naa",
    "sources/mohod2015-spinach-tomato-metals",
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    "sources/seyfferth2024-spinach-cd-pb-review",
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    "sources/wu2024-jiaozuo-china-cereals-vegetables-legumes-heavy-metals",
    "sources/zemanova2015-spinach-cadmium-amino-fatty-acids"
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