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Nations KR, Smits JA, Tolin DF, Rothbaum BO, Hofmann SG, Tart CD, Lee A, Schipper J, Sjogren M, Xue D, Szegedi A, Otto MW.Nations KR, et al. Among authors: schipper j.J Clin Psychiatry. 2012 May;73(5):647-53. doi: 10.4088/JCP.11m07081. Epub 2012 Feb 21.J Clin Psychiatry. 2012.PMID: 22394471Clinical Trial.