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Evans Whitaker, MD, MLISNorris Medical LibraryUniversity of Southern CaliforniaLos Angeles, CA 90089-9130(323) 442-1128 [email protected]
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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 (http://www.usc.edu/nml
)▪ Library information
▪ Staff Directory
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1. Norris Medical Library – Access and Overview of Resources (5 minutes)
1. MEDLINE (30 minutes)2. Miscellany and Questions (the
remainder)
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Proxy server (don’t use VPN) (http://libproxy.usc.edu/login )
Log in with USC email information User name (email address up to @) Password
Bookmark Norris Library homepage Start information hunting here as you will
have full text access to everything USC purchases
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“Everything” you need in one place If there are other things you want in
this location … let me know
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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)
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• Multiple versions of this database
• Same content but different look
• Ovid = PubMed • (= PubGet)
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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?
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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
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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
MEDLINEThe most effective searching is
Finding the term in MeSH Search with that term in MEDLINE
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Three ways to access MEDLINE at USC: PubMed (USC’s version, PubMed@USC
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)
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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
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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 PubMed
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Things you can do now: Look at full-text copy of articles
▪ Print ▪ Save ▪ Email
Add to Clipboard Save to Collections Save your search
▪ Have new articles about your topic sent to you
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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?
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Too many results
Too few results
MeSH terms
Add another MeSH term
Remove a MeSH term
Subheadings
Add subheadings Remove subheadings
Major Mesh to Majr Majr to MeSH
Limits Add limits Remove limits
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Use MeSH if available3 or fewer MeSH terms are (usually)
enoughFocus the disease or conditionSubheadings
3 or fewer subheadings per MeSH Don’t use unless they match perfectly
Explode Leave MeSH terms exploded
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Electronic table of contents (e.g., JAMA) PubGet.com
Saved work in MEDLINE: MyNCBI and/or Ovid Personal Account
UpToDate - ”What’s New”Faculty of 1000 – Medicine Journal Watch
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Norris homepage
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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
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Please feel free to contact me (or any of the librarians at Norris Library) with any information questions you have!
Norris Website (http://www.usc.edu/nml)