1. Entry
     BC Comment Observation (2.16.840.1.113883.3.1818.10.4.3)
    1. Entry
       BC CDA Author (Body) (2.16.840.1.113883.3.1937.777.17.10.2)
      1. Header
         BC CDA Person (2.16.840.1.113883.3.51.60.1.5.2)
      2. *
         CDA Organization (2.16.840.1.113883.10.12.151)