Retraction to: Transl Psychiatry 2011; 1: e31; doi:10.1038/tp.2011.27. Published online 16 August 2011

The above article has been retracted by the editor because author Stanley I Rapoport alerted the editor, and the National Institutes of Health subsequently confirmed, that the data represented by Figures 4 and 5 were falsified. Stanley I Rapoport and Hyung-Wook Kim support this retraction. The other author has not responded to our correspondence with them about the retraction of their article.