Fig. 4
From: What can the neurological manifestations of COVID-19 tell us: a meta-analysis
Forest plots of the severe and non-severe groups. a Headache, b dizziness, c seizure, d myalgia, e smell impairment, f taste dysfunction in severe group and a’ headache, b’ dizziness, c’ seizure, d’ myalgia, e’ smell impairment, f’ taste dysfunction in the non-severe group. After the heterogeneity test, the results in figures a/a’ to f/f’ all suggest that there was significant heterogeneity among the selected literature in this study.)