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    "sources/ahmed2017-bangladesh-vegetable-arsenic",
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    "sources/bora2022-heavy-metals-fruits-vegetables-romania-vinegar-washing",
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    "sources/elbagermi2012-misurata-fruits-vegetables-metals",
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    "sources/fatai2024-african-spinach-tomato-nigeria",
    "sources/fda-tds-elements-2018-2020",
    "sources/ghasemidehkordi2018-markazi-vegetables-pb-hg",
    "sources/heshmati2020-iran-vegetables-cereals-pb-cd",
    "sources/hossain2016-bangladesh-vegetables-pb-cd-cr",
    "sources/huang2014-zhejiang-vegetables-heavy-metals",
    "sources/hussain2019-plant-food-heavy-metal-review",
    "sources/jiang2020-henan-battery-factory-crops-metals",
    "sources/kharkwal2023-cooked-beans-vegetables-metals",
    "sources/kim2024-metals-kale-urban-rural-maryland",
    "sources/masri2025-toxicant-foods-california",
    "sources/mawari2022-heavy-metals-fruits-vegetables-india",
    "sources/naser2018-leafy-vegetables-bangladesh-metals",
    "sources/ngodhe2018-kale-soil-sludge-kisumu-heavy-metals",
    "sources/orosun2023-vegetables-nigeria-ptms",
    "sources/osuolale2025-leafy-vegetables-ondo-trace-elements",
    "sources/pal2017-wastewater-vegetables-heavy-metals",
    "sources/pan2016-zhejiang-vegetables-metals",
    "sources/sadee2022-erbil-vegetables",
    "sources/salehipour2015-iran-isfahan-cereals-vegetables-metals",
    "sources/see2025-malaysia-leafy-vegetables-icp-oes",
    "sources/sharma2016-spinach-wastewater-metals",
    "sources/souri2019-leafy-vegetables-growth-stage-metals",
    "sources/sultana2022-dhaka-root-leafy-vegetables",
    "sources/tjoa2023-peanut-choy-sum-nickel-laterite",
    "sources/vela2023-quito-vegetables-cd-pb",
    "sources/wang2019-dietary-lead-guangzhou",
    "sources/wang2020-jilin-total-diet-metals",
    "sources/wang2021-houttuynia-mercury-china",
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    "sources/wu2024-jiaozuo-china-cereals-vegetables-legumes-heavy-metals",
    "sources/zemanova2015-spinach-cadmium-amino-fatty-acids",
    "sources/zhang2024-lettuce-cadmium-greenhouse-amendments"
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