Tim kiem va nhan dinh tai lieu for 20 mins

PHAN DINH PHONG, MD.
Vietnam Heart Institute
Hanoi Medical University
Looking for something
on the internet
Is Finding needles
in haystacks
You may go with search engines like
Google or Yahoo…
And you are lucky, sometimes…
( I am feeling lucky , too)
However!
SO…
When you are looking
specifically for information about
scientific biomedical research,
there are more direct ways...
§  Open to All ‒ Free from the US National
Library of Medicine (NLM), available
free on the Internet since the
mid-1990s.
§  Bibliographic with Abstracts and Links
to Full Text
§  Comprehensive - Covers all BioMedical and Clinical topics
§ 5,164 Journals Indexed
§ > 22.000.000 Citations
VS
PubMed
Google
Biomedical haystacks only
All haystacks
Terms assigned by Human
Indexers
Machine created
Controlled Vocabulary
Cluster Analysis
Mostly Grain
Mostly Chaff
How to access PubMed/
Medline?
Ø Go
to
http://www.ncbi.nlm.nih.gov/pubmed/
OR simply by typing:
www.pubmed.com/org
Register for easy use
Pubmed/Medline is HUGE !
Type: 1800:2100[dp]
then SEACH
(on 16 Sep 2012)
22 129 574 CITATIONS
Type: 1800:2100[dp]
then SEARCH
(16 Sep 2011)
21 185 818 CITATIONS
~ 1 000 000 (ONE MILLION)
citations updated in Pubmed in ONE YEAR
IF each requires 5 minutes to read
THEN you will need
1000000x5 : (365x24x60) ~ 10 (YEARS)
to review them all continuously!
IS IT POSSIBLE?
As you type:
HYPERTENSION
The number of articles
found will be
ENORMOUS!
MESH
§  Medical Subject Headings
§  An alphabetical list of medical
terms
§  MESH makes efficient searching
easy
About 35% of the Medline database
references provide full text
Click for
free fulltext
About 65% of the Medline database
references provide abstracts only
About 65% of the Medline database
references provide abstracts only
What should we do???
http://www.who.int/hinari/en/
VIA
82568
About 65% of the Medline database
references provide abstracts only
Click on HINARI
icon to get the
free full text
www.sciencedirect.com
§  ScienceDirect is one
of the largest online
collections of
published scientific
research.
§  Operated by the
publisher Elsevier.
§  Contains nearly 10 million articles from
over 2,500 journals and over 6,000 ebooks, book series and handbooks.
www.sciencedirect.com
SIGN-IN to get
more fulltext
Right click and
save as
WHICH JOURNALS are
?
#1
The good one must be
Peer-reviewed
Most famous medical
journals are peer-reviewed
#2
The good one must have
a high impact factor
Impact Factor of a Journal
Journals with high Impact Factors
publish articles that are cited more
often than journals with lower Impact
Factors.
Calculating Impact Factor
# of citations in the current year
for a journal
# items published in the journal
for the last 2 years
The impact factor was devised by Eugene Garfield, the founder of
the Institute for Scientific Information (ISI), part of Thomson
Reuters. Impact factors are calculated yearly for those journals that
are indexed in Thomson Reuters Journal Citation Reports
http://en.wikipedia.org/wiki/Impact_factor
General Medicine - 2010
General Medicine - 2010
Cardiology - 2010
Cardiology - 2012
www.nejm.org/com
Free to access
in Vietnam
www.nejm.org/com
Free to access What if you were
in Vietnam
not in VN?
Nejm VINTAGE
ORIGINAL ARTICLE
ORIGINAL ARTICLE
REVIEW ARTICLE
PERSPECTIVE
EDITORIAL
CORRESPONDENCE
AND
CORRECTION
http://www.thelancet.com
Lancet (surgery)
Lancet arch
The Lancet was founded in 1823 by Thomas Wakley, a surgeon
The Lancet is a weekly peer-reviewed general medical journal.
http://jama.ama-assn.org
Eric Topol. JAMA. 2001;286:954-959
http://circ.ahajournals.org
User name: hanoi
Password: ********
http://www.cardiosource.org
How the
Mass media impacts
What else ?
http://www.vnha.org.vn
http://www.vnha.org.vn
Many thanks!
&