Medical searching

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Medical searching

• Kazem Heidari

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Reading in medicine

• Browsing
• Reading for fun of it
• Books and journals are used.
• Reading for information
• Approach the literature answers for specific
  question
• Focused searching
• Reading for research
• Comprehensive view of the existing state of
  knowledge
• Reviews (systematic) are used

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Reading journals

• Browsing mode
• Printed version is easier.
• Problem solving mode
• Electronic version is easier.

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• Question
• search
• Answer
• The better formulated your question is,
• the more relevant your answer is likely to be.
  

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TYPES OF QUESTIONS

• Background
• Foreground

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Background and foreground questions
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Five Information Sources Clinicians Must Use

• Journals general, specialized, and summary
• MEDLINE, EMBASE and/or other major database
  service(s)
• Internet search engines, directories, government
  sites, etc.
• Textbooks (slowly changing factual information)
• Personal collection to support routine
  activities (e.g., personal specialty reprint
  collection)

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Electronic Resources

• Databases
• Electronic textbooks
• Electronic journals
• Free
• Subscription services

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Benefits of electronic resources

• We focus on online rather than print products
  because they are generally easier to search and
  more current than print products

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Search strategy
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Search Strategy

• A systematic process used to find the most
  relevant information on a topic
• Useful reference sources,
• Select works appropriate for the research need,
• Locates information
• Evaluates the relevance of the information found

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Principles are similarbutMethods are different
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Databases

• Free
• Not free
• OR
• Prefiltered
• Nonfiltered
• OR
• Bibliographic
• Fulltext

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ALL RESOURCES ARE SUITABLE FOR ALL TYPES OF
QUESTIONS?
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Where and how clinical questions arise?

• clinical findings
• etiology
• differential diagnosis
• diagnostic tests
• prognosis
• therapy
• prevention
• patient experience and meaning
• self-improvement

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Bibliographic

• Medline
• Cinahl
• Embase

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Medline

• By US National Library of Medicine
• over 11,000,000 citations of both clinical and
  preclinical studies.
• comprehensive coverage of medical journals and
  because it is readily accessible.
• American bias

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Medline

• Free of charge using
• Pubmed
• commercial vendor
• OVID
• Silver Platter.

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http//www.ncbi.nlm.nih.gov/entrez/query.fcgi
www.pubmed.com
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http//www.tums.ac.ir
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http//diglib.tums.ac.ir/
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CINAHL

• Produced by Cinahl Information
• http//www.cinahl.com
• Nursing and allied health literature 1982-present
• Bibliographic with some full-text
• 500 nursing journal titles
• Your health sciences library subscribes
• You can pay for the service

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EMBASE

• Elsevier Science Publishers, Netherlands
• Type of Database Bibliographic
• Numbers of Journals 3500
• Bias European in focus
• Subject Coverage Strong on Pharmaceutical and
  Clinical Medicine
• Overlap with MEDLINE estimated at between 25 and
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• 75 of References contain Abstracts

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http//diglib.tums.ac.ir/
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• http//www.acpjc.org/
• ACP journal club
• Prefiltered database
• since 1991
• General purpose select from the biomedical
  literature articles that report original studies
  and systematic reviews that warrant immediate
  attention by physicians attempting to keep pace
  with important advances in internal medicine

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• Trip database
• Allows users to rapidly and easily identify high
  quality medical literature from a wide range of
  sources
• http//www.tripdatabase.com

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• Search in trip pic

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UNIVERSE OF BIOMEDICAL JOURNALS 30,000
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Grey Literature
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Full text

• EBSCOhost
• Cochrane Library

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• Thank you!

• Any question?