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Breton JJ, Valla JP, Lambert J.Breton JJ, et al. Among authors: valla jp.J Am Acad Child Adolesc Psychiatry. 1993 Mar;32(2):438-45. doi: 10.1097/00004583-199303000-00028.J Am Acad Child Adolesc Psychiatry. 1993.PMID: 8444776
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