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Journal indexing
The following Web services index/include all BioMed Central research journals:
Citebase
Google
Google Scholar
OAIster
PubMed
PubMed Central
Scirus
SOCOLAR
Zetoc
In addition, the following services index/include a selection of BioMed Central research journals (as indicated):
Thomson Scientific (ISI)
BMC Biology Impact Factor due June 2008 unofficial 2006 Impact Factor: 4.43
BMC Medicine Impact Factor due: June 2009 unofficial 2006 Impact Factor: 4.17**
BMC Neurology Impact Factor due June 2009 unofficial 2006 Impact Factor: 1.89**
BMC Psychiatry Impact Factor due June 2010 unofficial 2006 Impact Factor: 1.92**
Molecular Cancer Impact Factor due June 2008 unofficial 2006 Impact Factor: 3.62**
Molecular Pain Impact Factor due June 2009 unofficial 2006 Impact Factor: 3.14**
Retrovirology Impact Factor due June 2008 unofficial 2006 Impact Factor: 4.32**
* Services offered by Thomson Scientific (ISI) include Web of Science, Science Citation Index and Current Contents. For more information about Thomson Scientific (ISI) tracking of BioMed Central journals, see our citation tracking FAQ.
**Unofficial Impact Factors
For journals that have not yet been tracked by Thomson Scientific (ISI) for long enough to have an Impact Factor it is nonetheless possible to calculate an unofficial Impact Factor, which we have done for some journals.
Unofficial 2006 Impact Factors were established by dividing the number of times articles published in 2004 and 2005 were cited in 2006, based on a search of the Science Citation Index database, by the number of articles published in the previous two years (2004 and 2005).
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MEDLINE
The following journals are included in MEDLINE:
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EMBASE/Excerpta Medica and Scopus
CAS
The following journals are tracked by CAS: All BMC journals
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CABI
The following journals are tracked by CABI:
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Medscape
Selected articles from the following journals are made available by Medscape:
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