How to use Medline via OVID
Too many hits?

• use the Focus option to narrow the search
• use an AND search to narrow your search
• make sure you have used any Boolean operators correctly
• use more precise terms
• try searching in a specific field instead of across all of them
• use a specific MeSH subject heading
• use the limiting function

If none of these help, you may be using an inappropriate database for your needs. See what others are available.

Using AND