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  • 1. Maurice Bouchard July 2, 2012
  • 2. What is PubMed?• PubMed is a powerful search engine – Established in 1996 by NCBI at the NLM – MEDLINE, life science journals, and online books – Articles from at least 1914 to the present – Available to anyone with an Internet connection • no software installation required – EBSCO and ISI are proprietary competitors• PubMed Central – Free archive of biomedical and life science journal articles• PubMed Health – Reviews of clinical effectiveness research
  • 3. How is PubMed used?• Simple search – Single search box for keywords • with auto-complete – Keywords combined with Boolean AND – Automatic Term Mapping • MeSH • Journals • Full author  author index • Full investigator  full investigator index • When a match is made searching stops (e.g., physiology)
  • 4. Simple Search
  • 5. How is PubMed used?• Advanced search – Many fields available for key word searching • Author, journal title, article title, abstract, dates, etc, etc – Choice of Boolean operators: AND, OR, NOT – Auto-complete and show index combine powerfully – Complex searches can be constructed and saved – No (practical) limit to the number of clauses – Components can be previewed, saved, and reused – Search query language can be manipulated
  • 6. Advanced Search
  • 7. How is PubMed used?• Results – Results are ranked by relevancy • exact match on MeSH terms come first • title matches are also highly ranked – Narrowing the search is easy • many facets available • facets are configurable • „clickable‟ date histogram – Getting full-text – Related articles – Citation list
  • 8. Results
  • 9. Results
  • 10. How is PubMed used?• Other features – Send results to… • email • citation managers • file • “My Bibliography” – login required • more – Results work with Zotero – Searches can be saved – Alerts can be generated – RSS feed
  • 11. Zotero
  • 12. RSS Feed
  • 13. How is PubMed used?• Other tools – Single Citation Matcher – Batch Citation Matcher • email a | [pipe] delimited list to retrieve PMIDs – Clinical Queries • limits results to clinical research areas – Topic Specific Queries • pre-built search query on a topic (e.g., cancer, ethics) – PubMed Mobile
  • 14. Is PubMed Perfect?• Lacks capability to browse• Coverage years by journal?• No proximity searching• Facet UI is clunky• Generates queries it cannot run• Tighter integration to citation managers
  • 15. Why PubMed?• Authoritative• Expansive coverage – 21,000,000 articles – 25,000 journals• Tight MeSH integration• Well supported with help, guides, tutorials• Free – no login required for most features – free login for other features
  • 16. References• Canese K. “PubMed Celebrates its 10th Anniversary!” NLM Tech Bulletin 352 (Sep–Oct 2006): e5. Accessed July 1, 2012.http://www.nlm.nih.gov/pubs/techbull/so06/ so06_pm_10.html.• National Center for Biotechnology Information. “About NCBI.” Last modified August 4, 2010. http://www.ncbi.nlm.nih.gov/About/index.html.• National Library of Medicine. “About the National Library of Medicine.” Last modified May 10, 2012. http://www.nlm.nih.gov/about/index.html.
  • 17. References• University of Texas at Austin, University of Texas Libraries. “PubMed and MedLine [sic] Differences.” Last modified May 25, 2010. http://www.lib.utexas.edu/lsl/help/difference.html.• PubMed Help [Internet]. Bethesda (MD): National Center for Biotechnology Information (US); 2005-. PubMed Help. [Updated 2012 May 9]. Available from: http://www.ncbi.nlm.nih.gov/books/NBK3827/.• Wikipedia, The Free Encyclopedia. “PubMed.” Last modified June 21, 2012. http://en.wikipedia.org/w/index.php?title=PubMed&oldid= 498722726 .
  • 18. Questions?