UMLS

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	***[http://www.nlm.nih.gov/research/umls/metab3.html#sb3_0 Term (field) description]		***[http://www.nlm.nih.gov/research/umls/metab3.html#sb3_0 Term (field) description]
	***MRCONSO: TS - term status; P=Preferred;		***MRCONSO: TS - term status; P=Preferred;
-	**[http://www.nlm.nih.gov/research/umls/meta2.html#s2_2 Concept]: concept categorization (related concepts)	+	**[http://www.ncbi.nlm.nih.gov/books/NBK9684/ Concept]: concept categorization (related concepts)
	***2.7.1.3.10 Co-occurring Concepts (File = MRCOC.RRF)		***2.7.1.3.10 Co-occurring Concepts (File = MRCOC.RRF)
	<pre>In the current Metathesaurus, there are three sources of co-occurrence data:		<pre>In the current Metathesaurus, there are three sources of co-occurrence data:

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Revision as of 02:35, 18 February 2011

• Brief introduction (2006) (PDF)
• UMLS Metathesaurus Columns & Data elements
  • UMLS Reference Manual
    • MSH MESH
    • MTHICD9 ICD-9-CM Entry Terms (UMLS)
    • OMIM OMIM
    • MRSAB.RRF: UMLS에 담겨있는 각종 소스의 정보
    • Source abbreviations
    • ATN Attributes Name
    • RRF columns - fields
    • Term (field) description
    • MRCONSO: TS - term status; P=Preferred;
  • Concept: concept categorization (related concepts)
    • 2.7.1.3.10 Co-occurring Concepts (File = MRCOC.RRF)

In the current Metathesaurus, there are three sources of co-occurrence data: 
MEDLINE, AI/RHEUM, and CCPSS. From MEDLINE, co-occurrence data was computed for concepts 
that were designated as principal or main points in the same journal article i.e., 
the co-occurrence counts do not include articles in which either or both of the concepts 
were present and indexed in MEDLINE but not designated as main points. 
(A concept is considered to be a main point if the * is attached to the main heading
or any of its subheadings.)