{ "items" : [
    { "id" : "http://ns.inria.fr/covid19/PMC7303569#body_text"
      "properties" : {
        "http://purl.org/dc/terms/subject" : [ "Radiology",
          "Cardiology",
          "1789 establishments in the United States",
          "Medical ultrasonography",
          "Publicly traded companies based in New York City",
          "Practice of medicine",
          "Primary care",
          "Cardiac imaging"] } } }
