1. Entry
     CCD Author (Body) (2.16.840.1.113883.3.1937.777.4.10.5)
    1. Header
       CCD Person (2.16.840.1.113883.3.1937.777.4.10.1)
    2. Entry
       CCD Device (2.16.840.1.113883.3.1937.777.4.10.6)
    3. Header
       CCD Organization (2.16.840.1.113883.3.1937.777.4.10.2)