1. Header
     CDA2 author (2.16.840.1.113883.3.1937.99.61.30.10.68)
    1. *
       CDA Person (2.16.840.1.113883.10.12.152)
    2. Entry
       CDA Device (2.16.840.1.113883.10.12.315)
    3. *
       CDA Organization (2.16.840.1.113883.10.12.151)