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Hilbert K, Pine DS, Muehlhan M, Lueken U, Steudte-Schmiedgen S, Beesdo-Baum K.Hilbert K, et al.Psychiatry Res. 2015 Dec 30;234(3):314-20. doi: 10.1016/j.pscychresns.2015.10.009. Epub 2015 Oct 13.Psychiatry Res. 2015.PMID: 26490569Free PMC article.