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History (continued)

There are several ways to combine searches in your History:

  • Click "Add" to add the search to the search builder with "AND."
  • Click the search number to expand the options menu and select a Boolean operator.
  • Create a search strategy using the search numbers, either in the search builder or the search box.

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The video illustrates the directions that are on this page.

This video can be seen directly at http://www.nlm.nih.gov/bsd/disted/pubmedtutorial/videos/020_410.mp4

PubMed History Tips:

  • History numbers are used across databases. #1 may be in PubMed, #2 in the MeSH Database, #3 in the NLM Catalog, etc. PubMed History will only display those run in PubMed.

  • History can hold a maximum of 100 search statements. Once that number is reached, PubMed will remove the oldest search to add the most current.

  • Search History is automatically lost after 8 hours of inactivity, but your last 6 months of activity is saved in the Recent Activity feature of My NCBI, if you use a My NCBI account.

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