Petra van der Schaaf
type: Person
description: Dutch physician
nationality: Netherlands
has occupation: physician
has occupation: author
additional property: PropertyValue
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  value: female
additional property: PropertyValue
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  value: Netherlands
additional property: PropertyValue
  property ID: P31
  value: human
additional property: PropertyValue
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additional property: PropertyValue
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  value: author
additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
  property ID: P734
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additional property: PropertyValue
  property ID: P735
  value: Petra
additional property: PropertyValue
  property ID: P1006
  value: 326505385
additional property: PropertyValue
  property ID: P1412
  value: Dutch
additional property: PropertyValue
  property ID: P1889
  value: Petra Schaaf
additional property: PropertyValue
  property ID: P2013
  value: petra.vanderschaaf
additional property: PropertyValue
  property ID: P2963
  value: 6479255
confidence:
  popularity graph score:
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    score pct: 0
    tier: long_tail
    components:
      sitelinks: 0
      sitelinks norm: 0.0
      unique citations: 1
      unique citations norm: 0.0
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 0
  unique citations: 1
  monthly pageviews: 0
  yearly pageviews: 0
  tier: long_tail
claims:
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    value: Q6581072
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    confidence: 0.0
    value label: female
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    confidence: 0.0
    value label: Netherlands
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    confidence: 0.0
    value label: human
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    confidence: 0.2
    value label: physician
  P106:
    value: Q482980
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    confidence: 0.2
    value label: author
  P213:
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    confidence: 0.0
  P214:
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  P734:
    value: Q56246156
    source count: 0
    confidence: 0.0
    value label: Schaaf
  P735:
    value: Q740790
    source count: 0
    confidence: 0.0
    value label: Petra
  P1006:
    value: 326505385
    source count: 0
    confidence: 0.0
  P1412:
    value: Q7411
    source count: 0
    confidence: 0.0
    value label: Dutch
  P1889:
    value: Q111364515
    source count: 0
    confidence: 0.0
    value label: Petra Schaaf
  P2013:
    value: petra.vanderschaaf
    source count: 0
    confidence: 0.0
  P2963:
    value: 6479255
    source count: 0
    confidence: 0.0
citations:
  retrieved: 2023-09-20
meta:
  wikidata id: Q111365009
  domain: human
  level: standard
  html url: https://4ort.xyz/entity/petra-van-der-schaaf
  markdown url: https://4ort.xyz/entity/petra-van-der-schaaf.md
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  facts url full: https://4ort.xyz/entity/petra-van-der-schaaf/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-24T03:57:00.788279Z
  entity updated at: 2026-05-03T16:20:22.557058+00:00Z
  entity created at: 2026-05-03T14:31:45.274403+00:00Z