{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC7403130#title"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "COVID-19",
          "Angiology",
          "Occupational safety and health",
          "Disability",
          "Zoonoses",
          "Viral respiratory tract infections",
          "Diseases and disorders",
          "Old age",
          "Social constructionism",
          "Biology",
          "Exercise physiology",
          "Gerontology",
          "Elder law",
          "Circulatory system"] } } }
