@prefix n9j: <http://data.loterre.fr/ark:/67375/N9J> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

n9j:-concepts
  a isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member n9j:-NQB0HSD2-R .

n9j: a skos:ConceptScheme .
n9j:-P93CJ7QH-8
  skos:prefLabel "epidemiology of risk and protective factors"@en ;
  a skos:Concept ;
  skos:narrower n9j:-NQB0HSD2-R .

n9j:-NQB0HSD2-R
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/Harvard_Alumni_Health_Study> ;
  skos:definition "The Harvard Alumni Health Study is an ongoing epidemiological study of 36,000 men who matriculated at Harvard University as undergraduates between 1916 and 1950 (no women were admitted during those years). The study was established in the 1960s, when health questionnaires were sent to surviving alumni of these classes. [Source: Encyclopedia of Health and Behavior; Harvard Alumni Health Study]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-P93CJ7QH-8 ;
  skos:prefLabel "Harvard Alumni Health Study"@en .