“…1 ). The studies included were conducted in various countries including Algeria [ 31 ], China [ 32 - 39 ], Croatia [ 40 ], Egypt [ 41 , 42 ], Greece [ 43 , 44 ], India [ 45 - 49 ], Iran [ 50 - 57 ], Italy [ 58 - 66 ], Japan [ 67 , 68 ], Malaysia [ 69 , 70 ], Romania [ 71 ], Serbia [ 72 ], South Korea [ 73 - 78 ], Spain [ 79 , 80 ], Taiwan [ 81 ], Turkey [ 82 - 92 ], USA [ 93 , 94 ]. Additionally, one study [ 95 ] was a multicentre study based in Egypt [ 43 ].…”