Post on 07-May-2015
description
Literature SearchSomkiat Asawaphureekorn
M.D., M.Sc. (Clinical Epidemiology)
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Department of Ophthalmology, Faculty of Medicine, Srinagarind Hospital
Khon Kaen University, Khon Kaen, Thailand.
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Before You Search
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Before You Search
• Know your resources
• Form your questions, search terms
• Form your search strategy
• Search syntax
• Record your search strategy & results
• Try all relevant databases
• Refine your search as required
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Before You Search
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Before You SearchYour Question
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Before You SearchYour Question PICO
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Before You Search
Background Question?
Your Question PICO
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Before You Search
Background Question? Text bookYes
Your Question PICO
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Before You Search
Background Question? Text bookYes
Question Type
No
Your Question PICO
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Before You Search
Background Question? Text bookYes
Question Type
No
Your Question
TherapyEtiology
DiagnosisPrognosis
etc.
PICO
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Before You Search
Background Question? Text bookYes
Question Type
No
Your Question
Study Design
TherapyEtiology
DiagnosisPrognosis
etc.
PICO
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Before You Search
Background Question? Text bookYes
Question Type
No
Your Question
Study Design
TherapyEtiology
DiagnosisPrognosis
etc.
RCTSystematic Review
Cohortetc.
PICO
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Before You Search
Background Question?
Identify the best available resource
Text bookYes
Question Type
No
Your Question
Study Design
TherapyEtiology
DiagnosisPrognosis
etc.
RCTSystematic Review
Cohortetc.
PICO
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Search the database5
Before You Search
Background Question?
Identify the best available resource
Text bookYes
Question Type
No
Your Question
Study Design
TherapyEtiology
DiagnosisPrognosis
etc.
RCTSystematic Review
Cohortetc.
PICO
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General Search Strategy
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Define relevant, searchable terms
General Search Strategy
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Define relevant, searchable terms
General Search StrategyMeSH
EmTreeFree text
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Define relevant, searchable terms
General Search Strategy
Define alternate terms
MeSHEmTreeFree text
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Define relevant, searchable terms
General Search Strategy
Define alternate terms
Design search strategy
MeSHEmTreeFree text
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Define relevant, searchable terms
General Search Strategy
Define alternate terms
Design search strategy
MeSHEmTreeFree text
AND OR
NOT
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Define relevant, searchable terms
General Search Strategy
Define alternate terms
Design search strategy
Relevant results?
MeSHEmTreeFree text
AND OR
NOT
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Define relevant, searchable terms
General Search Strategy
Define alternate terms
Design search strategy
Relevant results?
No
MeSHEmTreeFree text
AND OR
NOT
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Define relevant, searchable terms
General Search Strategy
Define alternate terms
Design search strategy
Relevant results?
Summarize & Appraise the evidence
Yes
No
MeSHEmTreeFree text
AND OR
NOT
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Define relevant, searchable terms
General Search Strategy
Define alternate terms
Design search strategy
Relevant results?
Apply the evidence
GOODSummarize & Appraise the evidence
Yes
No
MeSHEmTreeFree text
AND OR
NOT
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Define relevant, searchable terms
General Search Strategy
Define alternate terms
Design search strategy
Relevant results?
Apply the evidence
GOODSummarize & Appraise the evidence
Yes
No
Poor
MeSHEmTreeFree text
AND OR
NOT
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Bibliographic Databases
• PubMedhttp://pubmed.gov
• Scopus (SciVerse)http://www.scopus.com
• ISI Web of Science (Science Citation Index)http://isiknowledge.com
• LILACS (via “virtual health library”)http://regional.bvsalud.org
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Searching Systematic Reviews
• Cochrane reviews http://thecochranelibrary.org Search Cochrane reviews via PubMed
• AND cochrane database syst rev [journal]• AND (systematic [sb] OR meta-analysis [pt])• Caution when using “Limit” boxes in “Advance search”
• Non-Cochrane reviews (with comments) CRD databases (Centre for Reviews and Dissemination @ NHS)
http://www.crd.york.ac.uk
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Searching Ref. of the Ref.
• Scopus
• Science Citation Index
• Google Scholarhttp://scholar.google.com
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Free Academic Databases
• Google Scholarhttp://scholar.google.com
• Scirushttp://www.scirus.com
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Open Access Journals• Directory of open access journals
www.doaj.org
• Open access publishers BioMed Central
• www.biomedcentral.com PLoS - Public Library of Science
• www.plos.org Dove Medical Press
• www.dovepress.com Hindawi Publishing Corporation
• www.hindawi.com Medknow Publications
• www.medknow.com11
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www.doaj.org
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Open Access Publishers 1
• BioMed Central www.biomedcentral.com Year founded 2000 Based in U.K. An STM (Science, Technology and Medicine)
publisher Journals 219
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Open Access Publishers 2
• PLoS - Public Library of Science www.plos.org Year founded 2000 Based in San Francisco, U.S.A. Journals
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Open Access Publishers 3
• Dove Medical Press www.dovepress.com Year founded 2003 Based in U.K. Journals 114
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Open Access Publishers 4
• Hindawi Publishing Corporation www.hindawi.com Year founded 1997 Based in Cairo, Egypt Journals >300
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Open Access Publishers 5
• Medknow Publications www.medknow.com Year founded 1999 Based in Mumbi, India Journals >135
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PubMed Central
• PubMed free full-text archives
• Freely access with copyright protection
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Clinical Trials Database
• Cochrane Librarythecochranelibrary.org Include hand-search clinical trials
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Clinical Trials Registration• ClinicalTrials.gov (NCT12345678)
http://www.clinicaltrials.gov U.S. NIH, developed by NLM
• Current Controlled Trials (ISRCTN12345678) http://www.controlled-trials.com NHS, U.K., published by BioMed Central
• International Clinical Trials Registry Platform (WHO ICTRP) Search Portal http://www.who.int/ictrp/en/
• Thai Clinical Trials Registry (TCTR-1234-56789) http://www.clinicaltrials.in.th
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http://www.clinicaltrials.gov
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NCT
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http://www.controlled-trials.com
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http://www.clinicaltrials.in.th
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Clinical Trials Search Portal• International Clinical Trials Registry Platform
(WHO ICTRP) Search Portal A search tool, not a registration site Search across multiple clinical trials registration
• ClinicalTrials.gov• Current controlled trials• Australian New Zealand Clinical Trials Registry• Brazilian, Chinese, Indian, Korean, Cuban, German,
Iranian, Japanese, Sri Lanka, Pan African, the Nethelands http://www.who.int/ictrp/en/ http://apps.who.int/trialsearch/
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http://www.who.int/ictrp/en/
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Thai Journals Databases
• Thai Index Medicus @ Chulahttp://library.md.chula.ac.th
• Thai Medical Index @ Sirirajhttp://www.medlib.si.mahidol.ac.th
• Thai-Journal Citation Index Centre (TCI)http://http://www.kmutt.ac.th/jif/public_html/
• Thai Theses Databasehttp://thesis.stks.or.th
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Search Exhaustively
• Electronic databases
• Printed journals, hand-search
• Unpublished articles
• Expert seeking
• Pharmaceutical companies data
• Grey literature (non-peer reviewed items)
• General web search engines google, yahoo, etc.
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Other Special Databases
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Special Databases
• CINAHL (Cumulative Index of Nursing literature and Allied HeaLth)
http://www.cinahl.com
• PsycINFO http://www.apa.org/psycinfo/ APA, only Psychological abstracts (from 1800s)
• CTSNet (The Cardiothoracic Surgery Network) http://www.ctsnet.org/
• PEDro (Physiotherapy Evidence Database) http://www.pedro.org.au/
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Drugs & Chemical Databases
• TOXNET http://toxnet.nlm.nih.gov/ (can access via PubMed) Toxicology, hazardous chemicals, environmental
health, and toxic releases
• Micromedex www.micromedex.com A drug information system One of the most authoritative resource From Thomson
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Thesis Search
• NDLTD www.ndltd.org The Networked Digital Library of Theses and
Dissertations An international organization dedicated to promoting
the adoption, creation, use, dissemination and preservation of electronic analogues to the traditional paper-based theses and dissertations
Open access with PDF files
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Full text Databases• PubMed Central
www.pubmedcentral.nih.gov
• HighWire Presshighwire.stanford.edu
• Free Medical Journalswww.freemedicaljournals.com
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Reference Management Tool
• Zotero: http://www.zotero.org
• Need to run under Firefox (Firefox add-on)
• Produced by Center for History and New Media at George Mason
University
• Funded by United States Institute of Museum and Library
Services Andrew W. Mellon Foundation Alfred P. Sloan Foundation
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Knowledge & Wisdom
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Knowledge & Wisdom
Knowledge …is proud that he has learnt so much,
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Knowledge & Wisdom
Knowledge …is proud that he has learnt so much,
Wisdom …is humble that he knows no more.
46Wednesday, August 24, 2011
Knowledge & Wisdom
Knowledge …is proud that he has learnt so much,
Wisdom …is humble that he knows no more.
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Knowledge & Wisdom
Knowledge …is proud that he has learnt so much,
Wisdom …is humble that he knows no more.
The Task (1785) by
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Knowledge & Wisdom
Knowledge …is proud that he has learnt so much,
Wisdom …is humble that he knows no more.
The Task (1785) byWilliam Cowper (1731 - 1800)
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THANK YOU
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