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{
  "_meta": {
    "note": "Copy of the tier fields now also stored in sources.json; kept as a standalone review table.",
    "tiers": {
      "T1": "guideline, society or government source",
      "T2": "peer-reviewed journal article or review (journal, year, article type recorded)",
      "T3": "Wikipedia, Libre Pathology or other community text",
      "T4": "anything else"
    }
  },
  "sources": {
    "iccr-lung": {
      "tier": "T1",
      "tier_label": "Guideline / reporting standard",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "International Collaboration on Cancer Reporting (ICCR), a consortium of pathology colleges and societies; expert-panel reporting datasets used as national standards; synoptic checklist developed from the WHO 2021 taxonomy; not a journal article, no reuse licence found.",
      "license": "no explicit reuse terms found; paraphrase only"
    },
    "pmc7698816": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (retrospective cohort study)",
      "journal": "Cancers",
      "year": 2020,
      "article_type": "retrospective cohort study",
      "legitimacy": "Cancers (2020). Europe PMC publication types: research-article, Journal Article. Indexed in PubMed Central / Europe PMC; open-access licence as recorded.",
      "license": "CC BY 4.0 (confirmed from the Europe PMC licence element and the MDPI statement; see snapshots/pmc7698816-licence-evidence.txt)"
    },
    "pmc12308192": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (cross-sectional study (single centre, India))",
      "journal": "Iranian journal of pathology",
      "year": 2025,
      "article_type": "cross-sectional study (single centre, India)",
      "legitimacy": "Iranian journal of pathology (2025). Europe PMC publication types: research-article, Journal Article. Indexed in PubMed Central / Europe PMC; open-access licence as recorded.",
      "license": "CC BY 4.0 (confirmed; see snapshots/pmc12308192-licence-evidence.txt)"
    },
    "bracs-paper": {
      "tier": "T2",
      "tier_label": "Dataset paper (journal + preprint)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "BRACS dataset paper: published peer-reviewed in Database (Oxford) 2022 baac093; the cited text is the arXiv:2111.04740 preprint of it; the dataset itself is the source of the BRACS labels used in this thesis; the \"expert definition\" statements are the authors' annotation protocol, not a guideline.",
      "license": "Two versions, two licences. arXiv version (arXiv:2111.04740): arXiv non-exclusive distribution licence (abstract page links arxiv.org/licenses/nonexclusive-distrib/1.0/). Journal version (Database 2022, baac093, doi 10.1093/database/baac093, PMC9575967): CC BY-NC 4.0. Non-commercial research use; paraphrase with attribution."
    },
    "pmc8833401": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (review)",
      "journal": "Cancers",
      "year": 2022,
      "article_type": "review",
      "legitimacy": "Cancers (2022). Europe PMC publication types: review-article, Review, Journal Article. Indexed in PubMed Central / Europe PMC; open-access licence as recorded.",
      "license": "CC BY 4.0 (licence statement read on the page 2026-10-01)"
    },
    "pmc10216527": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (narrative review)",
      "journal": "Brain sciences",
      "year": 2023,
      "article_type": "narrative review",
      "legitimacy": "Brain sciences (2023). Europe PMC publication types: review-article, Review, Journal Article. Indexed in PubMed Central / Europe PMC; open-access licence as recorded.",
      "license": "CC BY 4.0 (MDPI open access licence statement read on the page 2026-10-01)"
    },
    "pmc9427889": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (minireview)",
      "journal": "Acta neurochirurgica",
      "year": 2022,
      "article_type": "minireview",
      "legitimacy": "Acta neurochirurgica (2022). Europe PMC publication types: Research Support, Non-U.S. Gov't, review-article, Review, Journal Article. Indexed in PubMed Central / Europe PMC; open-access licence as recorded. Journal: established neurosurgery journal.",
      "license": "CC BY 4.0 (licence statement read on the page 2026-10-01)"
    },
    "librepath-anaplastic-astrocytoma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2018; widely used as a quick reference; NC-SA licence, paraphrase only. Revision predates the WHO 2021 classification, so terms and grades may be outdated.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-astrocytoma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2022; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-brain-metastasis": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2024; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-craniopharyngioma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2019; widely used as a quick reference; NC-SA licence, paraphrase only. Revision predates the WHO 2021 classification, so terms and grades may be outdated.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-ependymoma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2022; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-ganglioglioma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2022; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-hemangioblastoma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2025; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-hemangioma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2022; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-lch": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2016; widely used as a quick reference; NC-SA licence, paraphrase only. Revision predates the WHO 2021 classification, so terms and grades may be outdated.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-lipoma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2018; widely used as a quick reference; NC-SA licence, paraphrase only. Revision predates the WHO 2021 classification, so terms and grades may be outdated.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-medulloblastoma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2019; widely used as a quick reference; NC-SA licence, paraphrase only. Revision predates the WHO 2021 classification, so terms and grades may be outdated.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-meningioma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2022; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-neuropath-tumours": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2022; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-pilocytic": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2017; widely used as a quick reference; NC-SA licence, paraphrase only. Revision predates the WHO 2021 classification, so terms and grades may be outdated.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-pituitary-gland": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2022; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-schwannoma": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2022; widely used as a quick reference; NC-SA licence, paraphrase only.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "librepath-sft": {
      "tier": "T3",
      "tier_label": "Libre Pathology (community wiki)",
      "journal": null,
      "year": null,
      "article_type": null,
      "legitimacy": "Libre Pathology: volunteer-edited community wiki for pathologists and trainees, not peer-reviewed, no named review board; revision 2016; widely used as a quick reference; NC-SA licence, paraphrase only. Revision predates the WHO 2021 classification, so terms and grades may be outdated.",
      "license": "CC BY-NC-SA 3.0 (Copyrights page says NC SA 3.0)"
    },
    "pmc10033642": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (narrative imaging review)",
      "journal": "Neuroradiology",
      "year": 2023,
      "article_type": "narrative imaging review",
      "legitimacy": "Neuroradiology (2023). Europe PMC publication types: review-article, Review, Journal Article. Indexed in PubMed Central / Europe PMC; open-access licence as recorded. Journal: established neuroradiology journal.",
      "license": "CC BY 4.0 (read from the Europe PMC full-text XML licence element and the PMC article page, 2026-10-01)"
    },
    "pmc10791336": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (case report)",
      "journal": "Case reports in pathology",
      "year": 2024,
      "article_type": "case report",
      "legitimacy": "Case reports in pathology (2024). Europe PMC publication types: Journal Article, Case Reports, case-report. Indexed in PubMed Central / Europe PMC; open-access licence as recorded.",
      "license": "CC BY (version not stated on the page) (read from the Europe PMC full-text XML licence element and the PMC article page, 2026-10-01)"
    },
    "pmc11089008": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (brief report / letter (small series of 7 spinal ependymomas))",
      "journal": "Acta neuropathologica",
      "year": 2024,
      "article_type": "brief report / letter (small series of 7 spinal ependymomas)",
      "legitimacy": "Acta neuropathologica (2024). Europe PMC publication types: Letter, brief-report, Research Support, Non-U.S. Gov't. Indexed in PubMed Central / Europe PMC; open-access licence as recorded. Journal: leading neuropathology journal.",
      "license": "CC BY 4.0 (read from the Europe PMC full-text XML licence element and the PMC article page, 2026-10-01)"
    },
    "pmc11226565": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (case report)",
      "journal": "Cureus",
      "year": 2024,
      "article_type": "case report",
      "legitimacy": "Cureus (2024). Europe PMC publication types: Journal Article, Case Reports, case-report. Indexed in PubMed Central / Europe PMC; open-access licence as recorded. Journal: open-access journal with light peer review; case reports carry the lowest evidentiary weight.",
      "license": "CC BY 4.0 (read from the Europe PMC full-text XML licence element and the PMC article page, 2026-10-01)"
    },
    "pmc11227055": {
      "tier": "T2",
      "tier_label": "Peer-reviewed journal article (case report)",
      "journal": "European thyroid journal",
      "year": 2024,
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      "license": "CC BY 4.0 (licence statement read in the article text 2026-10-01)"
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      "license": "CC BY 4.0 (licence statement read in the article text 2026-10-01)"
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      "article_type": "original research article (AI pattern quantification, multi-cohort)",
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      "journal": "Biomedicines",
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      "license": "CC BY (version not stated in the licence statement) (licence statement read in the article text 2026-10-01)"
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      "article_type": "narrative review",
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      "license": "CC BY (version not stated in the licence statement) (licence statement read in the article text 2026-10-01)"
    },
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      "year": 2026,
      "article_type": "case series (22 cases)",
      "legitimacy": "Virchows Archiv : an international journal of pathology (2026). Europe PMC publication types: research-article, Journal Article. Indexed in PubMed Central / Europe PMC; open-access licence as recorded. Journal: established pathology journal (European Society of Pathology).",
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