# OnCo record ca19-9 (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/ca19-9/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "ca19-9" ;
  schema:name "CA 19-9"@en ;
  schema:description "A sugar molecule shed into the blood by most pancreatic cancers; useful to follow treatment, not to screen."@en ;
  schema:url <https://onco.cc/terms/ca19-9/> ;
  schema:dateModified "2026-09-06"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/CA19-9> ;
  owl:sameAs <http://www.wikidata.org/entity/Q182517> ;
  schema:citation <https://en.wikipedia.org/wiki/CA19-9>, <https://doi.org/10.3978/j.issn.2078-6891.2011.021>, <https://doi.org/10.1016/j.pan.2018.08.003>, <https://doi.org/10.1016/j.pan.2017.11.011> ;
  onco:cancers <https://onco.cc/cancers/pancreatic/>, <https://onco.cc/cancers/ipmn-cystic-precursors/>, <https://onco.cc/cancers/cholangiocarcinoma/> ;
  onco:technologies <https://onco.cc/technologies/pancreatic-surveillance/> ;
  onco:terms <https://onco.cc/terms/lewis-negative/>, <https://onco.cc/terms/nccn-resectability-criteria-pancreatic/> ;
  onco:keyPapers <https://onco.cc/key-papers/paper-goonetilleke-ca19-9-systematic-review-ejso-2007/>, <https://onco.cc/key-papers/paper-hess-ca19-9-response-chemotherapy-lancet-oncol-2008/>, <https://onco.cc/key-papers/paper-tempero-ca19-9-lewis-antigens-cancer-res-1987/>, <https://onco.cc/key-papers/paper-yeh-ca19-9-lewis-negative-fut3-cutoff-ccr-2026/>, <https://onco.cc/key-papers/paper-fahrmann-ca19-9-lead-time-gastroenterology-2021/> .