Open (ook andere dan gedefinieerde elementen zijn toegestaan)
Omschrijving
Attribute setId identifies a set of documents that consists of different versions
of a document. This attribute will remain the same for all versions of the same document.
As an example, results may have multiple versions. While each new version has a different
ClinicalDocument.id, the set of versions identified in setId are all the same.
Condition: if attribute versionNumber is present, setId shall also be present.