{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC4183580#title"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "Blood proteins",
          "Protein structure",
          "Precursor proteins",
          "Medical terminology",
          "Units of chemical measurement",
          "Acute phase proteins",
          "Units of mass",
          "Symptoms and signs",
          "Metrology",
          "Nuclear chemistry",
          "Peptides",
          "Diseases of liver",
          "Rheumatology",
          "Posttranslational modification",
          "Coagulation system"] } } }
