Figure 1From: Bibliometric and content analysis of the Cochrane Complementary Medicine Field specialized register of controlled trials Number of citations in the CAM Field specialized register by citation publication year. * The drop in the number of trial citations for 2007ā2011 may be partially due to incomplete indexing of trials published in this recent time period and/or may be partially due to our having suspended additions of new search results to the CAM Field specialized register in August 2011.Back to article page