%0 Journal Article %T Temporal Trends in the Impact Factor of European versus USA Biomedical Journals %A Drosos E. Karageorgopoulos %A Vasiliki Lamnatou %A Thalia A. Sardi %A Ioannis D. Gkegkes %A Matthew E. Falagas %J PLOS ONE %D 2012 %I Public Library of Science (PLoS) %R 10.1371/journal.pone.0016300 %X The impact factors of biomedical journals tend to rise over time. We sought to assess the trend in the impact factor, during the past decade, of journals published on behalf of United States (US) and European scientific societies, in four select biomedical subject categories (Biology, Cell Biology, Critical Care Medicine, and Infectious Diseases). %U http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0016300