1. Entry
     Advance Directive Organizer (V2) (2.16.840.1.113883.10.20.22.4.108)
    1. notype
       Author Participation (2.16.840.1.113883.10.20.22.4.119)
    2. Entry
       Advance Directive Observation (V3) (2.16.840.1.113883.10.20.22.4.48)
      1. notype
         Author Participation (2.16.840.1.113883.10.20.22.4.119)
      2. datatypelevel
         US Realm Address (AD.US.FIELDED) (2.16.840.1.113883.10.20.22.5.2)
      3. datatypelevel
         US Realm Person Name (PN.US.FIELDED) (2.16.840.1.113883.10.20.22.5.1.1)
      4. datatypelevel
         US Realm Address (AD.US.FIELDED) (2.16.840.1.113883.10.20.22.5.2)