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Petersen I, Gilbert RE, Evans SJ, Man SL, Nazareth I.Petersen I, et al. Among authors: evans sj.J Clin Psychiatry. 2011 Jul;72(7):979-85. doi: 10.4088/JCP.10m06090blu. Epub 2011 Mar 8.J Clin Psychiatry. 2011.PMID: 21457681