{
  "status_code": 200,
  "request": {
    "research_question": "What is the incidence and prevalence of advanced cancers in Europe and other key jurisdictions?\n-   Focus on France, Italy, Spain, Belgium, Switzerland, UK; also include data for rest of Europe and Brazil, Chile, Columbia, Mexico, Canada.",
    "mock": false
  },
  "response": {
    "status": "could_improve",
    "missing_elements": [
      "Population definition: 'advanced cancers' is not defined\u2014specify whether this means stage IV, metastatic, recurrent disease, or another clinical staging/criteria.",
      "Cancer types: it is unclear whether the review targets all cancer sites combined or specific tumour types, which affects search terms and inclusion.",
      "Age/sex groups: no statement on whether adults, children, or all ages are included nor whether sex/age stratification is required.",
      "Geographic scope: 'rest of Europe' is vague\u2014clarify whether this means EU countries only, the WHO European Region, or a country-by-country list.",
      "Timeframe: no study period or publication years are specified, so searches may yield inconsistent or outdated estimates.",
      "Outcome definitions: incidence and prevalence types are not specified (point vs period prevalence, crude vs age-standardized rates, per 100,000), nor whether modelled estimates (e.g., GLOBOCAN) are acceptable.",
      "Case definitions/data sources: no guidance on acceptable case definitions (e.g., ICD codes, staging systems) or data sources (national registries, administrative data, modelling studies, grey literature).",
      "Study design: types of evidence to include (population-based registry reports, observational studies, modelling studies, conference/grey literature) and language/publication restrictions are not specified.",
      "Level of reporting: unclear whether national-level estimates only are required or whether subnational/registry-level data are acceptable.",
      "Comparability/standardization: unclear whether comparisons across jurisdictions should use standardized methods (age-standardization) or adjusted estimates.",
      "Terminology/spelling: 'Columbia' is misspelled and should be 'Colombia', which could miss records in systematic searches."
    ],
    "suggestion": "Clarify the definition of 'advanced' (staging/ICD codes), list included cancer sites or state 'all', specify age groups, exact countries/definition of 'rest of Europe', time period, precise outcome metrics (point/period, crude vs age\u2011standardized), acceptable data sources and study designs, level of reporting (national/subnational), comparability requirements, and correct 'Colombia' to ensure comprehensive, reproducible searches."
  }
}