{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "German Adaptive Threshold Estimation is a fast strategy based on a modified 4-2 staircase algorithm, using prior visual fields to calculate the starting intensity. In: Chiefer U, Pascual JP, Edmunds B, Feudner E, Hoffmann EM, Johnson CA, Lagreze WA, Pfeiffer N, Sample PA, Staubach F, Weleber RG, Vonthein R, Krapp E, Paetzold J. Comparison of the new perimetric GATE strategy with conventional full-threshold and SITA standard strategies. Investigative Ophthalmology and Visual Science, 2009, 51: 488-494",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "5f336dd4-db81-5653-939a-25648922f08e",
  "concept_id" : "15681579-0ab1-5d26-ab23-a2fd0ada1036",
  "ancestors" : {
    "111831" : 0
  },
  "id" : "e8061895-21f0-41a1-a854-4467ca65aa2d",
  "code" : "111831",
  "display" : "Visual Field GATE Test Strategy",
  "version" : "01"
}