highly significantp < 0.0001
In addition, when comparing delta values of both groups, we observed in MTZ-treated patients a highly significant reduction (i.e., clinical improvement) for both RCSS ( p < 0.0001, Mann-Whitney; Fig. 4 b) and MBAS values ( p < 0.0001, Mann-Whitney; Fig. 4 d) with respect to the untreated group.