{
  "O6724": {
    "_ref": "O6724_OB_ULTRASOUND_2292309774030023", 
    "demo": {
      "BirthYear": "1988", 
      "DeathYear": " ", 
      "Ethnicity": "Non-Hispanic", 
      "FirstRace": "White", 
      "MultiRacial": "No", 
      "Sex": "Female"
    }, 
    "exam": {
      "AgeAtExam": "30", 
      "IsAbnormal": "No", 
      "PrimaryDiagnosis": "Encounter for antenatal screening for malformations", 
      "ProcedureName": "OB U/S COMPLETE < 14 W, SINGLE; NUCHAL TRANSLUCENCY", 
      "SmokingStatus": "Never Smoker", 
      "Status": "Alive", 
      "Trimester": "1"
    }, 
    "labs": {
      "BloodType": "A Positive"
    }
  }
}