“…The 57 studies comprised of 14 RCTs, 39 , 43 , 44 , 51 , 54 , 57 , 61 , 62 , 63 , 64 , 67 , 72 , 74 , 77 and 43 non-randomised studies ( Table 1a ). 24 , 28 , 35 , 36 , 37 , 38 , 40 , 41 , 42 , 45 , 46 , 47 , 48 , 49 , 50 , 52 , 53 , 55 , 56 , 58 , 59 , 60 , 65 , 66 , 68 , 69 , 70 , 71 , 73 , 75 , 76 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 The non-randomised studies consisted of 11 retrospective pre-post or segmented time-series studies, 38 , 47 , 53 , 59 , 65...…”