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COMBINING (AND, OR) Screen 2 of 4
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OR
Either one or all
of the selected terms may appear in the retrieved citations. OR is used to include similar
terms or concepts, or to group synonyms or like-terms.
This will increase the number of citations to review by linking
synonyms together into one big group.
OR EXAMPLES
Acquired immunodeficiency syndrome
OR
AIDS OR HIV
pregnancy, first trimester OR pregnancy,
second trimester
myocardial infarction OR heart attack
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