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. 2022 Feb 17;43(5):2995–3006. doi: 10.1007/s10072-021-05855-2

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© Fondazione Società Italiana di Neurologia 2022

This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.

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Table 4.

Cochrane risk of bias outcomes of all reviewers for each included study