Figure 2

Flow diagram of included and excluded studies for the update January 1, 2004 to December 8, 2008 as of January 13, 2010 (Number for the further update to January 6, 2010 will appear in the individual clinical application results papers).
Flow diagram of included and excluded studies for the update January 1, 2004 to December 8, 2008 as of January 13, 2010 (Number for the further update to January 6, 2010 will appear in the individual clinical application results papers).