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Message-ID:  <[log in to unmask]>
Date:         Wed, 30 Nov 2005 13:28:56 -0500
Reply-To:     Rachel Kleinsorge <[log in to unmask]>
Sender:       UMLS Project Announcements <[log in to unmask]>
From:         Rachel Kleinsorge <[log in to unmask]>
Subject:      UMLS 2005AC edition

11/30/05

Attention UMLS Licensees: The 2005AC edition of the UMLS Knowledge Sources 
is available for downloading.  Information follows. 

*****2005AC Statistics: The Metathesaurus now contains 1,268,035 concepts 
and 5,963,467 unique concept names (AUIs) from more than 100 different 
source vocabularies. 23 source vocabularies were updated, including MeSH 
2006, SNOMED CT, and GO. 2 new sources, Common Terminology Criteria for 
Adverse Events v3.0 and United States Pharmacopeia were added. 

*****MetamorphoSys:      

RxNorm Subset changed: The default RxNorm subset has been removed. Users 
can access the RxNorm filter (from the file menu by selecting 
Enable/Disable Filter) to produce the same subset. 

Rich Release Format Browser: The RRF Browser is now included in 
MetamorphoSys, while it continues to be enhanced it is no longer a test 
version. With this simple but useful tool, users can view and search their 
customized Metathesaurus subsets. 

Information on the RRF Browser will be found at: 
http://www.nlm.nih.gov/research/umls/rrf_help.html 

MRCXT Builder: MRCXT Builder has been added to MetamorphoSys. This tool 
enables users to generate a MRCXT.RRF file from MRHIER.RRF in their 
customized subsets. MRCXT builder is the preferred way to create a 
customized MRCXT.RRF, if you need a MRCXT file at all.  Please note: all 
context information is better represented in MRHIER.RRF.  The code in the 
RRF Browser shows how contexts can be computed and displayed.

Documentation for the MRCXT builder will be linked from:  
http://www.nlm.nih.gov/research/umls/rrf_help.html

File checking: A new option "Validate Distribution", which validates the 
UMLS release files, is now available from the File menu on the Welcome 
screen. See section 6.3.1 Welcome to MetamorphoSys for more   information.  

MRCXT deprecated: Beginning with the 2006AA Release the file MRCXT will no 
longer be distributed (please see MRCXT Builder described above).  The fall 
2005AC edition will include MRCXT, but the January 2006 release will not. 

DVDs: As always, the production and mailing of the DVDs for those who have 
requested them lags the release by about 15 days.  Those who have 
previously requested the DVD will automatically be sent a 2005AC DVD.  If 
you want to request the DVDs of the releases, send an e-mail to 
[log in to unmask], and be sure to include your license number. 

Center for Information Technology National Institutes of Health Bethesda, Maryland 20892 301 594 6248 (v) 301 496 8294 (TDD) Comments and Assistance Accessibility