1. Entry
     BC Performer Participation (Body) (2.16.840.1.113883.3.1818.10.4.19)
    1. Header
       BC CDA E2E AssignedEntity (2.16.840.1.113883.3.1937.777.17.10.20)
      1. Header
         BC CDA E2E Person (2.16.840.1.113883.3.1937.777.17.10.43)
      2. Header
         BC CDA E2E Organization (2.16.840.1.113883.3.1937.777.17.10.21)