Name	Flags	Card.	Type	Description & Constraints
RelatedArtifact	Σ TU		Element	Related artifacts for a knowledge resource Elements defined in Ancestors: id, extension
type	Σ	1..1	code	documentation | justification | citation | predecessor | successor | derived-from | depends-on | composed-of RelatedArtifactType (Required)
label	Σ	0..1	string	Short label
display	Σ	0..1	string	Brief description of the related artifact
citation	Σ	0..1	markdown	Bibliographic citation for the artifact
url	Σ	0..1	url	Where the artifact can be accessed
document	Σ	0..1	Attachment	What document is being referenced
resource	Σ	0..1	canonical(Any)	What resource is being referenced
Documentation for this format