{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC5584132#title"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "Proteomics",
          "Immunology",
          "Proteins",
          "Molecular biology",
          "Immune system",
          "Medical treatments"] } } }
