“…, 16 , 17 , 18 , 19 , 20 , 21 , 22 Saudi Arabia (n = 5), 23 , 24 , 25 , 26 , 27 Jordan (n = 4), 28 , 29 , 30 , 31 and 3 studies each were conducted in the USA 32 , 33 , 34 and Qatar. 35 , 36 , 37 Two studies were conducted in Palestine, 38 , 39 and one study each was conducted in Canada, 40 Sweden 41 and Turkey. 42 …”