Retired Data-Fields and Returns represent information which is considered to be obsolete. Typically these contain information derived from Data-Fields within the system which have been superceded or augmented by more useful/usable presentations or is no longer considered interesting to Reseachers.

Retired Data-Fields and Returns are not exported to Reseachers but have been retained on the Showcase to ensure the completeness of public audit trails and historical records or published papers. These items do not show up in the Showcase Browse view and can only be reached by entering their ID directly into the Search facility.