@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

<https://concepts.sagepub.com/social-science/concept/conceptgroup/methods>
  a skos:Collection, isothes:ConceptGroup ;
  skos:prefLabel "methods"@en ;
  skos:member <https://concepts.sagepub.com/social-science/concept/Kaplan-Meier_method> .

<https://concepts.sagepub.com/social-science/concept/statistics_and_research_methods>
  skos:prefLabel "statistics and research methods"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/Kaplan-Meier_method> .

<https://concepts.sagepub.com/social-science/concept/Kaplan-Meier_method>
  skos:definition "The Kaplan-Meier (or product limit) estimator is a nonparametric (or distribution free) estimator of a survival distribution S(t). It was derived by Kaplan and Meier in 1958 as a direct generalization of the sample survivor function in presence of censored data. [Source: <a href=\"https://methods.sagepub.com/reference/encyc-of-epidemiology/n247.xml\" target=\"_blank\" data-id=\"to-srm\">Encyclopedia of Epidemiology; Kaplan-Meier Method</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/statistics_and_research_methods> ;
  skos:prefLabel "Kaplan-Meier method"@en ;
  a skos:Concept .