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    "paper_id": "W3145969997",
    "doi": "10.3748/wjg.11.7461",
    "title": "Fibroblast growth factor-4 and hepatocyte growth factor induce differentiation of human umbilical cord blood-derived mesenchymal stem cells into hepatocytes",
    "year": 2005,
    "refs": 13,
    "sources": [],
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        "id": "ri-20261025-1526",
        "built_at": "2026-10-25T15:31:22.065Z"
      },
      "target": {
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        "doi": "10.3748/wjg.11.7461",
        "title": "Fibroblast growth factor-4 and hepatocyte growth factor induce differentiation of human umbilical cord blood-derived mesenchymal stem cells into hepatocytes",
        "year": 2005,
        "source_tier": "C"
      },
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      "confidence_basis": "coverage",
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]