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Simon E, Bögels SM.Simon E, et al. Among authors: bogels sm.Eur Child Adolesc Psychiatry. 2009 Oct;18(10):625-34. doi: 10.1007/s00787-009-0023-x. Epub 2009 May 5.Eur Child Adolesc Psychiatry. 2009.PMID: 19415415Free PMC article.