Information management in the hospital and community health services : central requirements data model : version 2.0.
NHS Information Management Centre.
Birmingham : NHS Information Management Centre,
1991.
With: Updates to the HCHS central requirements data model (CRDM) inserted at the end.
Vol. 1. Model diagrams and overviews -- Vol. 2. Entity and form cross reference lists.
Medical care
Information storage and retrieval systems