@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/epidemiologic_data>
  skos:prefLabel "epidemiologic data"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/Harvard_Six_Cities_Study> .

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

<https://concepts.sagepub.com/social-science/concept/Harvard_Six_Cities_Study>
  skos:definition "The Harvard Six Cities Study was a large-scale study of the effects on human health of fossil fuel emissions, in particular, sulfur dioxide and respirable particulate matter (soot). It was inaugurated by Benjamin Ferris and involved many faculty members and researchers at Harvard University, including John Spengler, Douglas Dockery, and Frank Speizer. [Source: <a href=\"https://methods.sagepub.com/reference/encyc-of-epidemiology/n190.xml\" target=\"_blank\" data-id=\"to-srm\">Encyclopedia of Epidemiology; Harvard Six Cities Study</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/epidemiologic_data> ;
  skos:prefLabel "Harvard Six Cities Study"@en ;
  a skos:Concept .