Answer Last Updated: Dec 20, 2017 Views: 4171
The same record may be retrieved from more than one resource and appear multiple times in a results set. Ovid's deduplication feature allows you to eliminate duplicate records.
Note: The de-duplication feature is only available for results sets that have less than 6,000 records. For larger sets, the de-duplicate option is not be available.
Remove duplicates from the Search Information by selecting the Deduplicate link or the Deduplicate button under Search History.