“…With respect to the data analysis, it was often unclear how many and which trials were used. Some studies omitted to report the number of trials used [29,40], others only reported the number of trials recorded [27,28,[36][37][38]43,57,60], several clearly indicated how many trials were used for statistical analysis [30][31][32][33][34][35]39,46] and others specified that a mean or median was calculated [41,44,45,48,55].…”