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    { "id" : "http://dbpedia.org/resource/Polysomnography"
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        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Polysomnography (PSG), a type of sleep study, is a multi-parametric test used in the study of sleep and as a diagnostic tool in sleep medicine. The test result is called a polysomnogram, also abbreviated PSG. The name is derived from Greek and Latin roots: the Greek πολύς (polus for \"many, much\", indicating many channels), the Latin somnus (\"sleep\"), and the Greek γράφειν (graphein, \"to write\").Polysomnography is a comprehensive recording of the biophysiological changes that occur during sleep." ] ,
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          "http://dbpedia.org/resource/Electronystagmography",
          "http://dbpedia.org/resource/Electrooculography",
          "http://dbpedia.org/resource/Electroencephalography" ] ,
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        "http://dbpedia.org/ontology/thumbnail" : [ "http://commons.wikimedia.org/wiki/Special:FilePath/Sleep_Stage_REM.png?width=300"] } } }
