1. Header
     CDA custodian DocGen (2.16.840.1.113883.3.1937.777.63.10.73)
    1. Header
       CDA assignedCustodian (2.16.840.1.113883.3.1937.777.63.10.75)
      1. *
         custodianOrganization (2.16.840.1.113883.3.1937.777.63.10.260)
        1. Header
           CDA addr (2.16.840.1.113883.3.1937.777.63.10.34)