“…Summarizing the risk of bias for each study, only six studies were considered at low risk of bias [17,20,23,33,34,36], seven were at unclear risk [10,14,16,19,31,35,41], and ve studies were considered at high risk of bias [9,13,24,26,32]. Results of the quality assessment of RCTs are listed in Table 2, following the recommendations [44].…”