“…In total, the meta-analysis involved fifty-seven articles, as exhibited in Figure 1 . According to the Cochrane Collaboration tool, eleven trials [ 6 , 24 , 29 , 32 , 33 , 37 , 38 , 42 , 48 , 51 , 54 ] were categorized as being at a low risk of bias, while forty-four were categorized as unclear [ 17 , 19 , 20 , 21 , 22 , 23 , 25 , 27 , 28 , 30 , 31 , 34 , 35 , 36 , 39 , 40 , 41 , 43 , 44 , 45 , 46 , 47 , 49 , 50 , 52 , 53 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 ], and two were categorized as being at a high risk of bias [ 18 , 26 ]. Details about the risk of bias are supplied in Figure 2 and Figure 3 .…”