“…It becomes apparent that many studies did not provide (complete) information on the participants’ gender, while in seven studies [ 6 , 7 , 48 , 79 , 94 , 100 , 102 ], no demographic information was provided regarding gender. In the 52 studies reporting the age of participants, it ranged from 17 to 75 years, with a mean of 40.62 years [ 6 , 7 , 9 , 10 , 21 , 22 , 23 , 24 , 46 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 77 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 , 89 , 90 , 91 , ...…”