{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC7129899#title"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "Infectious diseases",
          "Clinical pathology",
          "Microbiology",
          "Epidemiology",
          "Pathology",
          "Applied microbiology"] } } }
