Many databases use a thesaurus. It's important to note which is used by the databases you search.
Database | Thesaurus |
Cochrane Library databases | Medical Subject Headings (MeSH) (select records only) |
MEDLINE | Medical Subject Headings (MeSH) |
Emcare, Embase | Emtree |
PsycINFO | Thesaurus of Psychological Index Terms |
SPORTDiscus | Sports Thesaurus |
CINAHL | CINAHL Subject Headings |
ERIC | ERIC Thesaurus |
ProQuest Dissertations and Theses, Web of Science databases, Scopus | Inconsistently applied subject headings from various thesauri may be present. Search using keywords |
It is best practice to search using both keywords and subject headings.
Move through the slide deck below to learn how to use Medical Subject Headings (MeSH) in your search. Alternatively, download the PDF document at the bottom of this box.
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Subject headings allow you to find all articles about a particular concept, regardless of the terminology that is used in the article. You should always use both subject headings and keywords in your search strategy.
Many medical databases have a subject thesaurus which you should use when searching for subject headings.
For example: MEDLINE articles about cancer all have a subject heading of Neoplasms/.
Does it match what you want?
2. If you use a subject heading (line 1 of below) include this term and the terms in the scope notes in your keyword line (line 2 of the below).
3. MeSH is a 'tree structure', which branches as terms become more specific. If you identify a heading with additional branches underneath, and you would like to include all of these, you can use the 'Explode' option to include them all at once.
For example, exploding Chronic Disease/ will also search for the more specific terms Multiple Chronic Conditions/ and Noncommunicable Diseases/