Skip to Main Content

PA 8104 - Introduction to Scientific Inquiry - SU 2016: PubMed

PubMed Databases

______________________________________

NLM Search Tips and Tutorials

Instruction Highlights and Suggested Search Stratagies

Key Takeaways:

  • What is PubMed? PubMed is the National Library of Medicine’s bibliographic database comprising of over 25 million biomedicine, health, life sciences, behavioral sciences, chemical sciences, and bioengineering citations.
  • Keyword searching vs. MeSH controlled vocabulary: Understand the difference between keyword searching and using a controlled vocabulary (e.g. Subject Headings) when database searching. 
  • Think both broadly and specifically with regard to search terminology: you will produce difference search results depending on whether you search using general/generic/popular language vs a brand name or technical term.
  • Use Boolean operators (AND, OR, NOT) to build advanced search strategies to produce better/more relevant results.
  • Drawbacks to MeSH: As articles need to be manually indexed, there is a several month to year delay in Subject Heading attribution or "tagging." Extremely recent articles may not be identified in a search. Additionally, the specificity of the applied terminology may preclude articles not tagged with your precise search term. This delay also applies to some filtering options, e.g. "Article Types."
  • Drawbacks to Keyword searching: colloquial terminology is inconsistent--your search term may not be one used in the article. It also produces many erroneous results given the commonality of terms, e.g. chest pain.
  • Save interesting articles to the PubMed Clipboard, your NCBI account, or exported to a Citation Manager! It's easier to have and have to cull too many articles than it is to recreate your search later.