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BCLA Pubmed Made Simple - Searching Tips for Librarians
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BCLA Pubmed Made Simple - Searching Tips for Librarians

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BCLA May 11th, 2012

BCLA May 11th, 2012


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  • 1. PubMed Made Simple:Finding Authoritative Health Information for Your Patrons (BCLA Conference Session, #23) Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 1
  • 2. ObjectivesBy the end of this session, you will be able to:  Describe PubMed content to your users  Perform simple keyword searches  Discuss medical subject headings (MeSH)  Discuss the pros / cons of using PubMed  Such as MedlinePlus … … To find authoritative consumer health information
  • 3. This session will cover: What Medline is  How do you find medical research there?  Tips & tricks in searching  Cool tools in PubMed How journals get indexed in MEDLINE  MEDLINE over time – how has it changed?  What’s included in each record  Using Medical Subject Headings or MeSH Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012
  • 4. 1966 – MEDLINEa database of citations tobiomedical journal articles 4
  • 5. What’s in Medline MEDLINE is a database of citations to the medical literature 5,600 journals indexed in MEDLINE  Journals are approved by review committee NLM indexers use Medical Subject Headings (MESH) to index 50,000 articles a month In 2012, MEDLINE has 22 million citations back to mid-1940s High % of English-language articles / all have English abstracts 5
  • 6. Journal acceptance for MEDLINE Literature Selection & Technical Review Committee (LSTRC) LSTRC is made up of medical experts & librarians Examines hundreds of medical titles yearly Selects 20-25% of reviewed titles Arranges for indexing, XML, NLM loading Done by NLM librarians in Bethesda MD Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 6
  • 7. What criteria is used to select journals for indexing in Medline?Critical elements:  Scope & coverage  Quality of content  Quality of editorial work  Production quality  Audience  Types of content See Fact Sheet for selection criteria 7
  • 8. MEDLINE over time … See Journals Recently Accepted for Inclusion in MEDLINE 8
  • 9. PubMed as of 2012 http://www.pubmed.gov/ 9
  • 10. MedlinePlus: http://medlineplus.gov/ Trusted Health Information for Consumers• ~1000 health topics• Prescription drugs• Herbal supplements• Audiovisual content• Pre-formatted PubMed searches 10
  • 11. PubMed vs. MedlinePlus PubMed MedlinePlus• Free at http://pubmed.gov • Free at http://medlineplus.gov• Type of source: medical index • Type of source: consumer health information portal• Scientific content = 22 million citations – Medline database + more • Consumer content + librarian-reviewed • Reading level: grade 8 – Scholarly, peer-reviewed journals • Audience: general public + consumers/ patients• Audience: advanced users + researchers Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 11
  • 12. A MEDLINE RECORD: Journal name Article title Authors/1st author info Abstracts Language PMID (indexed?) Publication types Medical Subject Headings Substances 12
  • 13. What are medical subject headings? Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 13
  • 14. FACTs:• MeSH (Medical Subject Headings) = Medline’s controlled vocabulary• Describe journal content• Aid in informational retrieval• Indexers assign most specific terms 14
  • 15. Subheadings coordinate with MeSH for specificity= major descriptors get an *asterisk Subheadings coordinate with MeSH = /immunology /pathology 15
  • 16. MEDLINE LicenseesDean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 16
  • 17. What’s in PubMed? Equal to Medline? includes: • records for online books & chapters • out of scope articles 17
  • 18. How to Search PubMed http://www.pubmed.gov/ aids drugs breast feeding Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 18
  • 19. Results(most recent) 19
  • 20. Best features in a PubMed search …? Automatic term mapping Automatic explosion Citation sensor Links to the open web Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 20
  • 21. PubMed uses Automatic Term Mapping…which recognizes thousands of concepts & maps to the most appropriate terms … http://www.pubmed.gov/ ATM checks these fields for mapping properly  Medical subject headings Journal titles Authors 21
  • 22. ‘Search details’ translates your query …yes, to improve your search http://www.pubmed.gov/22
  • 23. See differences in retrieval:“aids drugs” + “breast feeding” = 3aids drugs breast feeding = 398(processed using ATM) Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 23
  • 24. Test Time~!http://www.pubmed.gov/ 24
  • 25. PubMed’s Citation Matcher fauci cell 2007 http://www.pubmed.gov/ Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 25
  • 26. PubMed’s citation match 26
  • 27. Basic PubMed searchingType keywords, separated by a space 27
  • 28. 28
  • 29. Use ‘Related citations’ …
  • 30. 30
  • 31. Link to genetics databases 31
  • 32. 32
  • 33. Register for MyNCBI account http://www.pubmed.gov/ Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 33
  • 34. MyNCBI homepage http://www.pubmed.gov/ 34
  • 35. MyNCBI: CustomizableMy NCBI allows you to: Save records (Collections, My Bibliography) Save searches (Saved Searches) Customize your results (Filters, My NCBI Preferences) http://www.pubmed.gov/ Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 35
  • 36. Summary MEDLINE’s database of biomedical research is the heart of PubMed Includes good quality journals seen as important by expert committee MEDLINE can be searched freely via PubMed; also other systems MEDLINE is enhanced by Medical Subject Headings (MeSH), which improve access to the literature & are used for searching 36
  • 37. Summary (cont’d) Search PubMed by entering main concepts Your search terms automatically map to MeSH terms Enter citation data (author | title | journal) to find known items Fulltext may be linked in PubMed (see publisher icon in upper right) See ‘related citations’ on right side of search results & abstract display Dean Giustini | UBC Biomedical Branch Librarian | May 11th 2012 37
  • 38. Dean Giustini UBC Biomedical Branch Librarian http://hlwiki.caSome screenshots & content for this presentation are from NCBI Training materials here: http://www.ncbi.nlm.nih.gov/education/