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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Child Adolesc Psychiatr Clin N Am. 2014 May 27;23(3):555–590. doi: 10.1016/j.chc.2014.02.002
• Good Consistent benefit in well-conducted studies in different populations.
• Fair Data shows positive effects, but weak, limited, or indirect evidence.
• Poor Can’t show benefit due to data weakness.