Symbol | Explanation |
---|---|
No symbol |
At least one of the keywords must be present
Search example: serious adverse event Result: Will contain serious and/or adverse and/or event |
+ |
Leading plus sign indicates that the word must be present
Search example: serious +adverse event Result: Will contain adverse and may contain serious and/or event |
- |
Leading minus sign indicates that the word must not be present
Search example: serious adverse -event Result: Will contain serious and/or adverse but won’t contain event |
“ ” |
Exact phrase must be present
Search example: “serious adverse event” Result: Will contain the phrase serious adverse event |
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