Unified Medical Language System | |
Archived UMLS Information |
UMLS Documentation Archives March 2004 UMLS News White Paper: UMLS Metathesaurus Rich Release (MR+) Format (August 2003) |
Last reviewed: 05 February 2008
Last updated: 09 May 2006
First published: 26 March 2004
Metadata| Permanence level: Permanence Not Guaranteed