“…A total of 46 articles was eligible for critical appraisal. 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127 The following articles presented overlapping patient data and were appraised as one: Bujang et al 91 and Liu et al, 92 Chkhotua et al 94 and Maglakelidze et al, 95 Griva et al 103 and Yang et al, 104 2 articles by Kontodimopoulos 111 , 112 and 2 articles by Theofilou, 120 , 121 leaving 41 studies for analysis.…”