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COMBINING (AND, OR)
Screen 3 of 4
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AND
All terms must appear
in each of the retrieved citations. Use AND when you want to create a relationship between
two or more different concepts that both/all must be represented in the retrieved literature.
Using the AND will decrease the number of citations by finding
only those citations that contain both/all concepts.
AND EXAMPLES
tuberculosis AND homelessness
pregnancy, first trimester AND abortion,
spontaneous
heart diseases AND cocaine
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