1. Entry
     eLab_Specimen Collection (2.16.840.1.113883.3.1937.99.61.5.10.900223)
    1. Entry
       eLab_CDA Performer (Body) (2.16.840.1.113883.3.1937.99.61.5.10.900224)
      1. Header
         eLab_CDA AssignedEntity (2.16.840.1.113883.3.1937.99.61.5.10.900225)
    2. Header
       eLab_CDA Participant (Body) (2.16.840.1.113883.3.1937.99.61.5.10.900226)
      1. Entry
         eLab_CDA PlayingEntity (2.16.840.1.113883.3.1937.99.61.5.10.900227)