1. Section
     XeH Procedure Indications (2.16.840.1.113883.2.51.10.77)
    1. Entry
       Code Observations (2.16.840.1.113883.10.20.6.2.13)
      1. Entry
         SOP Instance Observation (2.16.840.1.113883.10.20.6.2.8)
        1. Entry
           Purpose of Reference Observation (2.16.840.1.113883.10.20.6.2.9)
        2. Entry
           Referenced Frames Observation (2.16.840.1.113883.10.20.6.2.10)
          1. Entry
             Boundary Observation (2.16.840.1.113883.10.20.6.2.11)
      2. Entry
         Quantity Measurement Observation (2.16.840.1.113883.10.20.6.2.14)
        1. Entry
           SOP Instance Observation (2.16.840.1.113883.10.20.6.2.8)
          1. Entry
             Purpose of Reference Observation (2.16.840.1.113883.10.20.6.2.9)
          2. Entry
             Referenced Frames Observation (2.16.840.1.113883.10.20.6.2.10)
            1. Entry
               Boundary Observation (2.16.840.1.113883.10.20.6.2.11)