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Ovid MEDLINE Searching

Ovid MEDLINE Searching. Instructors Joe Pozdol, MLIS, pozdol@usc.edu Evans M. Whitaker, MD, MLIS, ewhitake@usc.edu Assistants Emily Brennan, MLIS ebrennan@usc.edu Pamela M. Corley, MLS, AHIP pcorley@usc.edu Eileen Eandi, MA, MLS, eeandi@usc.edu Joan Godell, MSLS, godell@usc.edu

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Ovid MEDLINE Searching

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  1. Ovid MEDLINE Searching Instructors Joe Pozdol, MLIS, pozdol@usc.edu Evans M. Whitaker, MD, MLIS, ewhitake@usc.edu Assistants Emily Brennan, MLIS ebrennan@usc.edu Pamela M. Corley, MLS, AHIP pcorley@usc.edu Eileen Eandi, MA, MLS, eeandi@usc.edu Joan Godell, MSLS, godell@usc.edu USC Norris Medical Library http://www.usc.edu/nml USC School of Pharmacy, Year II Class of 2011 March 13, 2009

  2. Objectives • To become familiar with the Norris homepage • To learn to identify major search concepts in a question • To understand MeSH, focus, explode, and subheadings • To develop a knowledge of Boolean operators and limits • To be able to identify authoritative literature • To evaluate article relevance to a research question

  3. www.usc.edu/nml ● Journals (All USC eJournals) ● Books/Multimedia (Multi-eBook Search) ● Databases (OvidSP MEDLINE) ● Pharmacy Student Portal ● Catalogs (HELIX and HOMER)

  4. MEDLINE • A subset of PubMed • >16 million citations in MEDLINE • >18 million citations in PubMed • Difference due to articles not yet indexed AND articles that won’t be since not biomedical

  5. Two ways to use Ovid MEDLINE • Basic • Quick • A few good articles • Advanced (Assignment!) • Precise • “Leave no stone unturned” • Steeper learning curve • Takes longer to do a search, but better results

  6. Question for the Day • Is Decadron effective in reducing post-operative nausea and vomiting in a 47-year-old woman about to undergo elective cholecystectomy? • Work with people nearby using Advanced mode

  7. Discussion Points • How many used Basic? Advanced? • Did you find answer? • How did you find it? • Were you satisfied with your search and results? • How many remember MeSH? • How many used MeSH terms?

  8. MeSH • MedicalSubjectHeadings • “MeSH terminology provides a consistent way to retrieve information that may use different terminology for the same concepts” (PubMed). • WHY? • Retrieval increases 30-50% by using MeSH

  9. Identifying Concepts • Identifying concepts and translation to MeSH takes some practice…. • …but 30-50% more complete searches are the result!

  10. Too Many, Too Few • Too many • Focus • Un-Explode • Subheadings • Limits • Too few • Remove Focus, Subheadings, Limits • Fewer MeSH terms

  11. Search Steps Review • Identify and clarify your information need a. Formulate the searchable question b. Break question into concepts • Enter one concept at a time a. Check scope note to verify medical subject heading is correct b. Explode all concepts c. Focus one or more concepts d. Consider subheadings

  12. Search Steps Review • Combine concepts with AND or OR • Use Limits such as English Language, Humans, Publication Type • Evaluate Results • Use Results Manager Print, Email, or Save (Print Preview for assignment)

  13. What is the maximum number of major concepts that should be entered on one search line? • One • Two • Three • Four

  14. Focusing a concept retrieves sources that have the concept as a major topic. • True • False

  15. Using up to 6 subheadings is a good strategy to retrieve articles that are about subtopics of interest. • True • False

  16. Which of the following is the least robust (i.e. reliable) publication type? • Case Study • Editorial • RCT • Review Article

  17. Applying the limits English Language and Humans will weed out foreign-language articles and animal studies. • True • False

  18. Which step would you do last?Apply limits Check scope notesDetermine major conceptsFormulate question Use AND to combine concepts • A. • B. • C. • D. • E.

  19. Practice Question Is Claritin or Zyrtec more effective in treating seasonal allergies?

  20. Last Slide! • Please fill out Evaluations • Stop by Norris Mon-Fri 9-5 for help

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