Getting the most relevant results in Ovid
Refine your search results by applying Limits which restrict your search results by specific criteria such as age group, language, date range, etc.
Use Limits if you have too many search results.
Popular Limits can be applied on the main search page.
To choose from all the Limits click on Additional Limits.
There you will find Limits for age groups, publication types such as clinical trials or practice guidelines, and Clinical Queries for more robust studies.
Limits are always applied to the last line of your search history. In Additional Limits you can apply limits to an earlier search set by checking the box next to that line of your search.