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In the Original Investigation entitled “Cannabinoids for Medical Use: A Systematic Review and Meta-analysis” published in the June 23/30, 2015, issue of JAMA,1 the value for the average reduction in the Ashworth spasticity scale should have been reported as “weighted mean difference, −0.12 (95% CI, −0.24 to 0.01); 5 trials.” This article was corrected online.
Incorrect Values Reported. JAMA. 2015;314(8):837. doi:10.1001/jama.2015.9010
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