Fig. 3

Funnel plot of comparison active tDCS + robotic rehabilitation Vs sham tDCS + robotic rehabilitation for the main outcome functionality. The references of the studies are shown in brackets. Asymmetries were not observed
Funnel plot of comparison active tDCS + robotic rehabilitation Vs sham tDCS + robotic rehabilitation for the main outcome functionality. The references of the studies are shown in brackets. Asymmetries were not observed