This document provides information about searching medical databases from the Cambridge University Library Medical Library. It discusses the "Big 4" databases - PubMed, Embase, Web of Science, and Scopus. It provides information on how to access the databases and compares their features. The document also discusses developing search strategies, using Boolean logic and keywords, and tips for effective searching. Assistance is available from the Deputy Medical Librarian.
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Big 4 michaelmas 2013
1. CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Big 4 Databases:
Pubmed, Embase,
Web of Knowledge, Scopus
Isla Kuhn
Deputy Medical Librarian
University of Cambridge Medical Library
7. Some differences..
Pubmed
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Embase
WoK
Scopus
Years of coverage
1954 present
1974 - present
1970 - present
1996 to
present
Subject headings
Health &
medicine
Health &
medicine
(pharmacology
strength)
Arts,
humanities,
sciences, social
sciences
Arts,
humanities,
sciences,
social sciences
Added bonus
Subject
headings
Subject
headings
H index
H index;
Journal Impact
factors;
Web & Patents
search;
Conference
proceedings
Journal
analyzer
8. But they all do the same thing
(pretty much..)
Pubmed
Password required? (RAVEN)
Complex search option (allowing for
Boolean and/or searching
Subject headings
Save Searches(after youve logged in)
Alerts
Related articles
Citation tracking
Links to full-text
Export to reference management tool
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Embase
WoK
Scopus
9. But they all do the same thing
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Pubmed
Embase
WoK
Scopus
Password required? (RAVEN)
No
Yes
Yes
Yes
Complex search option (allowing for
Boolean and/or searching
Yes
Yes
Yes
Yes
Subject headings
Yes
Yes
No (ish) No (ish)
Save Searches (after youve logged in)
Yes
Yes
Yes
Yes
Alerts
Yes
Yes
Yes
Yes
Related articles
Yes
Yes
Yes
Yes
Citation tracking
No
No
Yes
Yes
Links to full-text
Yes
Yes
Yes
Yes
Export to reference management tool
Yes
Yes
Yes
Yes
10. From Topic to Results
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Topic -> question -> keywords/synonyms
Effect of chocolate in prevention of heart disease
...Is consuming chocolate effective in reducing risk of heart disease? .
Themes / PICO / keywords
11. From Topic to Results
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Is consuming chocolate effective in reducing the risk of heart disease?
P problem / patient?
I Intervention?
C Comparison?
O Outcome?
Synonyms?
12. From Topic to Results
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Is consuming chocolate effective in reducing the risk of heart disease?
P heart disease
I chocolate
C
O risk
13. From Topic to Results
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Is consuming chocolate effective in reducing the risk of heart disease?
heart disease / heart failure / cardiovascular disease / coronary disease
chocolate / cocoa / cacao
risk / prevention / prevalence
14. Quiz 1
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Which will give you better hits (a more SPECIFIC search)?
1. coronary disease AND chocolate
2. chocolate OR heart failure
3. coronary disease NOT chocolate
4. risk AND chocolate
15. From Topic to Results:
Boolean Logic
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
AND to narrow the search by combining different topics
eg
physiotherapy and stroke
Both terms must be present in the results.
Physiotherapy
Stroke
16. Quiz 2
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Which will give you most hits (a more SENSITIVE search)
1. coronary disease AND heart failure
2. coronary disease OR heart failure
3. coronary disease NOT heart failure
17. From Topic to Results:
Boolean Logic
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
OR to broaden your search, by combining similar terms
eg
exercise or physical activity
Either term can be present in the resulting set of articles.
Stroke
Cerebral-vascular
Accident
18. Quiz 3
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Which will give you best hits (most SPECIFIC search)?
1. coronary disease AND chocolate AND risk
2. (coronary disease OR heart failure) AND chocolate AND risk
3. chocolate AND risk AND coronary failure
4. risk AND (chocolate OR cocoa) AND (coronary disease OR heart failure)
19. From Topic to Results:
Boolean Logic
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
NOT to restrict your search so that it does not contain a particular term
eg
physical therapy not manual therapy
The first, but not the second, term must be present.
Physical
Therapy
Manual
Therapy
20. From Topic to Results
Is consuming chocolate effective in the prevention of CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
heart disease?
heart disease OR cardiovascular disease or coronary disease
AND
chocolate OR cocoa OR cacao
AND
prevention OR risk or prevalence
Limits?
MeSH?
21. Access
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
http://library.medschl.cam.ac.uk/
click databases for literature searching
- Pick embase, medline (pubmed), web of science and scopus
or
wok.mimas.ac.uk
www.scopus.com
gateway.ovid.com/autologin.cgi
http://tinyurl.com/campubmed
22. Whats the difference?
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Pubmed
Embase
WoK
Scopus
Password required? (RAVEN)
No
Yes
Yes
Yes
Complex search option (allowing for
Boolean and/or searching
Yes
Yes
Yes
Yes
Subject headings
Yes
Yes
No (ish)
No (ish)
Save Searches (after youve logged in)
Yes
Yes
Yes
Yes
Alerts
Yes
Yes
Yes
Yes
Related articles
Yes
Yes
Yes
Yes
Citation tracking
No
No
Yes
Yes
Links to full-text
Yes
Yes
Yes
Yes
Export to reference management tool
Yes
Yes
Yes
Yes
23. From strategy to references
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
LibrarySearch / e-journals@cambridge
http://search.lib.cam.ac.uk/
and/or NHS ejournals?
http://tinyurl.com/nhs-ejournals
24. Searching Dos & Donts
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Dont try to do the whole search in one line
Dont imagine that your first attempt will get all the articles you need
Dont give up!
25. Searching Dos & Donts
CAMBRIDGE UNIVERSITY LIBRARY
MEDICAL LIBRARY
Do think of alternative ways of talking about your topic
Do learn from your hits and your misses
Do remember that you still have to critically appraise each article
Do ask for help