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  "Date": "2025-06-11",
  "Title": "'Entrez' in R",
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    "entrez_db_searchable",
    "entrez_db_summary",
    "entrez_dbs",
    "entrez_fetch",
    "entrez_global_query",
    "entrez_info",
    "entrez_link",
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    "entrez_search",
    "entrez_summary",
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    "linkout_urls",
    "parse_pubmed_xml",
    "set_entrez_key"
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      "title": "Fetch pubmed ids matching specially formatted citation strings",
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        "entrez_citmatch"
      ]
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      ],
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        "entrez_db_links"
      ]
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      "concept": [
        "einfo"
      ],
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        "entrez_db_searchable"
      ]
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      "concept": [
        "einfo"
      ],
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        "entrez_db_summary"
      ]
    },
    {
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      "title": "List databases available from the NCBI",
      "concept": [
        "einfo"
      ],
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        "entrez_dbs"
      ]
    },
    {
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      "title": "Download data from NCBI databases",
      "topics": [
        "entrez_fetch"
      ]
    },
    {
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        "entrez_global_query"
      ]
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      "concept": [
        "einfo"
      ],
      "topics": [
        "entrez_info"
      ]
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      "topics": [
        "entrez_link"
      ]
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      "title": "Post IDs to Eutils for later use",
      "topics": [
        "entrez_post"
      ]
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      "title": "Search the NCBI databases using EUtils",
      "topics": [
        "entrez_search"
      ]
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        "entrez_summary"
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        "Searching databases: entrez_search()",
        "Building search terms",
        "Using the Filter field",
        "Advanced counting",
        "Finding cross-references : entrez_link():",
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        "Use a web_history object",
        "Rate-limiting and API Keys",
        "Slowing rentrez down when you hit the rate-limit",
        "What next ?"
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