How to use Medline via OVID
No hits or not enough hits?

• use a textword search
• reduce the number of concepts you are using
• use an OR search to broaden your search
• consult a thesaurus or index for alternative terms
• use more general search terms
• use subject headings as search terms
• make sure you have used any Boolean operators correctly
• try searching across all the fields instead of a specific one
• use explode to include more specific terms
• choose "Include All Subject Headings"

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

Using OR