{
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  "retrieval_timestamp": "2026-06-29T11:54:30.284Z",
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    "sources/codex-cxs-193-1995",
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    "sources/epa1999-mercury-update-fish-advisories",
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    "sources/xu2025-heavy-metals-aquatic-foods-global"
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  "license": {
    "prose": "CC BY 4.0",
    "structured_data": "EU database rights reserved — see https://heavymetalindex.com/licensing",
    "attribution": "Heavy Metal Index (heavymetalindex.com), Paleo Foundation. Cite page_url or wiki_doi.",
    "contact": "karen@paleofoundation.com"
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