1. Header
     IPS CDA author (2.16.840.1.113883.10.22.2.2)
    1. Entry
       IPS CDA Device (2.16.840.1.113883.10.22.9.2)
    2. Header
       IPS CDA Organization (2.16.840.1.113883.10.22.9.1)
      1. datatypelevel
         IPS Address (2.16.840.1.113883.10.22.11)