{ "items" : [
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    { "id" : "http://webisa.webdatacommons.org/concept/ventricular_tachycardia_"
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    { "id" : "http://webisa.webdatacommons.org/concept/_torsade_de+pointes"
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    { "id" : "http://webisa.webdatacommons.org/concept/ventricular+fibrillation_vf_"
      "properties" : {
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