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. 2021 Aug 18;42(2):128–161. doi: 10.1177/03331024211036152

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© International Headache Society 2021

This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 4. — Forest plot showing relative risks (RRs) and 95% confidence intervals for short-term outcomes (improvement on VAS at ≤3 months) of RCTs comparing an intervention with placebo for the treatment of BMS (with pooled effect for ALA).