Thomson have released an update to the online version of their Journal Citation Reports. This release includes official Impact Factors for BMC Systems
Biology, Chemistry Central Journal, Diagnostic Pathology, Journal of Cardiothoracic Surgery, Neural Development and Radiation Oncology (which had been omitted in error from the earlier release of the JCR in June 2009) and provides corrected Impact Factors for Journal
of NeuroEngineering and Rehabilitation and BMC Structural Biology (which had been understated in the initial release).