As was announced previously in 2007 and in the first issue of 2008, the Turkish Journal of Medical Sciences has been officially indexed in Science Citation Index Expanded (SCIE) beginning with the first issue of 2007. Currently, a total of 7,167 journals are indexed in SCIE and 24 of these originate from Turkey. We hope this number will increase in the near future. Though there are many other means by which to evaluate a journal, the most widely accepted method is that of the impact factor (IF). The first official IF of the journal will be evaluated at the end of 2009, with the results released sometime in 2010. For the purpose of IF analyses, the number of citations in 2009 of articles published in 2007 and 2008 will be divided by the total number of articles published in those years.