Unlimited truncation retrieves all possible suffix variations of the root word indicated. To apply unlimited truncation to a term, type the root word or phrase followed by either of the truncation characters: $ (dollar sign) or : (colon). For example, in the truncated search disease$, OvidSP retrieves the word disease as well as the words diseases, diseased, and more.
Use unlimited truncation with care; you can retrieve results with unrelated words. For example, when we enter the truncated search rat$ to retrieve comprehensive results about the animal, OvidSP does retrieve results with the words rat and rats. But it also retrieves results with the words like rate that has nothing to do with our intended term.
*Courtesy of OVID Medline help
Here are some additional commands you can use in OVID Medline to limit your search. Don't forget Medline works best when adding individual concepts using 'AND'.
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