Evans Whitaker, MD, MLIS Norris Medical Library University of Southern California Los Angeles, CA (323)

 Please feel free to contact me (or any of the librarians at Norris Medical Library) with any information questions you have!  Contact information  Business Cards  Norris Website ( ) ▪ Library information ▪ Staff Directory

1. Norris Medical Library – Access and Overview of Resources (5 minutes) 1. MEDLINE (30 minutes) 2. Miscellany and Questions (the remainder)

 Proxy server (don’t use VPN) ( )  Log in with USC information  User name ( address up  Password  Bookmark Norris Library homepage  Start information hunting here as you will have full text access to everything USC purchases

 “Everything” you need in one place  If there are other things you want in this location … let me know

 If you can’t get to something you want …  Let us know and we will fix it for you  (We have one person at the library devoted to fixing links to publisher’s websites)

Multiple versions of this database Same content but different look Ovid = PubMed (= PubGet)

PubMed (search engine) is the tool used to search in PubMed and MEDLINE MEDLINE (database) > 17.8 Million Articles are added to PubMed by publishers MEDLINE and PubMed PubMed (database) > 19.5million …then moved to MEDLINE as they are indexed (have MeSH terms added) by NLM Clarifying confusing nomenclature What is MeSH?

 Most important single concept of today!!  A “dictionary” in which you look up the best words to use in MEDLINE searches  Using MeSH in searches increases the number of relevant articles found by 40-60%  Limitations:  New concepts, procedures, drugs may not have a MeSH term ▪ Use a Keyword (= any search term you choose that is not a MeSH term)  Takes time for new articles to be “indexed” for MEDLINE ▪ Can miss the newest articles

 PubMed can be considered as two databases in one  PubMed/MEDLINE – A database of information about journal articles  MeSH – A dictionary of terms to use in MEDLINE  The most effective searching is  Finding the term in MeSH  Search with that term in MEDLINE

 Three ways to access MEDLINE at USC:  PubMed (USC’s version, includes links to USC holdings) ▪ Freely available ▪ Now teaching Keck students this version of MEDLINE  OvidSP (includes links to USC holdings) ▪ USC pays Ovid for access ▪ Residents and students may not have access after USC  PubGet.com (see Clinician Portal for information)

 Allows you to save you work and get back to it!  Save your searches ▪ PubMed send you new articles about the topic as they come out  Save good articles in Collections  Let’s do it Let’s do it

 Does selenium supplementation prevent prostate cancer?  Concepts:  Prostate Cancer  Selenium Supplements  We want articles with both concepts  Would you combine the concepts with AND or OR?  AND  See one … watch a search in PubMedPubMed

 Things you can do now:  Look at full-text copy of articles ▪ Print ▪ Save ▪  Add to Clipboard  Save to Collections  Save your search ▪ Have new articles about your topic sent to you

 Prevention of DVT in total knee replacement?  Is oxygen inhalation therapy or triptans more effective in treating acute cluster headache?  In juvenile myoclonic epilepsy, would you best treat with valproate or would you choose another anticonvulsant medication?  Is Guillain-Barre syndrome best treated with plasma exchange or intravenous immunoglobulin (IVIG) therapy?  Are steroids useful as part of treatment of septic shock  Are steroids useful as part of treatment of bacterial meningitis?  Do SSRIs increase risk of GI bleeding?

Too many resultsToo few results MeSH termsAdd another MeSH term Remove a MeSH term SubheadingsAdd subheadingsRemove subheadings MajorMesh to MajrMajr to MeSH LimitsAdd limitsRemove limits

 Use MeSH if available  3 or fewer MeSH terms are (usually) enough  Focus the disease or condition  Subheadings  3 or fewer subheadings per MeSH  Don’t use unless they match perfectly  Explode  Leave MeSH terms exploded

 Electronic table of contents (e.g., JAMA)JAMA  PubGet.com PubGet.com  Saved work in MEDLINE:  MyNCBI and/or MyNCBI  Ovid Personal Account Ovid Personal Account  UpToDate - ”What’s New” UpToDate  Faculty of 1000 – Medicine Faculty of 1000 – Medicine  Journal Watch Journal Watch

 Norris homepage Norris homepage

 If you strike out in MEDLINE…  Searches full text of article  Very sensitive – finds the needle  Not specific – gives you the haystack too  GoogleScholar – set Advanced Preferences for USC full text GoogleScholar

 Please feel free to contact me (or any of the librarians at Norris Library) with any information questions you have!  Norris Website (