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Karch DL, Lubell KM, Friday J, Patel N, Williams DD; Centers for Disease Control and Prevention (CDC).Karch DL, et al.MMWR Surveill Summ. 2008 Apr 11;57(3):1-45.MMWR Surveill Summ. 2008.PMID: 18401333Free article.
Karch DL, Dahlberg LL, Patel N, Davis TW, Logan JE, Hill HA, Ortega L; Centers for Disease Control and Prevention (CDC).Karch DL, et al.MMWR Surveill Summ. 2009 Mar 20;58(1):1-44.MMWR Surveill Summ. 2009.PMID: 19305379Free article.
Logan J, Hall J, Karch D.Logan J, et al.Arch Gen Psychiatry. 2011 Sep;68(9):935-41. doi: 10.1001/archgenpsychiatry.2011.85.Arch Gen Psychiatry. 2011.PMID: 21893660