# OnCo record siewert-classification (term). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/terms/siewert-classification/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "siewert-classification" ;
  schema:name "Siewert classification (GEJ tumours)"@en ;
  schema:description "A way of classifying cancers at the junction of the oesophagus and stomach by where their centre sits, which decides whether they are treated as oesophageal or gastric."@en ;
  schema:url <https://onco.cc/terms/siewert-classification/> ;
  schema:dateModified "2026-09-07"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Siewert_classification> ;
  owl:sameAs <http://www.wikidata.org/entity/Q28455926> ;
  schema:citation <https://en.wikipedia.org/wiki/Siewert_classification> ;
  onco:cancers <https://onco.cc/cancers/gastric/>, <https://onco.cc/cancers/esophageal/> .