“…Ireland [ 47 , 48 ], Israel [ 49 , 50 ], Poland [ 51 , 52 ], and Saudi Arabia [ 53 , 54 ] contributed with two (1.3%) studies each while Brazil [ 55 – 57 ], Iran [ 58 – 60 ], Holland [ 61 – 63 ], Norway [ 11 , 64 , 65 ], and Switzerland [ 66 – 68 ] contributed with three (2.0%) studies each. Most of the data on the estimates of the prevalence comes from Canada (four, 2.6%) [ 69 – 72 ], Denmark (five, 3.3%) [ 73 – 77 ], Belgium (five, 3.3%) [ 35 , 78 – 81 ], France (five, 3.3%) [ 82 – 86 ], Spain (five, 3.3%) [ 8 , 28 , 33 , 87 , 88 ], Sweden (seven, 4.6%) [ 89 – 95 ], Germany (eight, 5.3%) [ 96 – 103 ], Australia (eight, 5.9%) [ 38 , 104 – 110 ], Italy (nine, 5.9%) [ 111 – 119 ], United Kingdom (nine, 5.9%) [ 29 , 32 , 120 – 126 ] and the United States of America (50, 32.9%) [ 14 , 15 , 30 , 31 , 34 ,…”