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Once you have selected a variety of keywords to use, it is time to build your search query. Remember that not all databases use the same search terms, but most use some form of Boolean searching, and many also use truncation and phrase searching. Using all three techniques in one search query can produce very precise results. Keywords can also be combined with defined subject headings to increase the precision of your search. Many databases have help pages so you can learn what their specific features are. If you would like assistance with developing your search query, please request a consultation with a reference librarian.
1) Make sure you know what the truncation symbol is for the database you are searching by checking the help pages
2) Choose a root that will return a sufficiently small number of relevant words. For example, the root "rat*" will find not only rat and rats, but also ratio, rate, and rationale.
Example: "blood sampling"
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