Department of Health thesaurus of health and social care terms : the DH-Data thesaurus /
Aitchison, Jean.
Brewin, M. R.
Cotton, J. E.
Defriez, Philip
Great Britain.Department of Health.
London : Stationery Office,
2002.
v. 1, Alphabetical section -- v. 2. Hierarchical section, Orphan terms, Bliss classmarks.