“…One study was published in 2006 [ 46 ]. Studies were conducted in several different countries: Belgium ( n = 1) [ 53 ], Canada ( n = 1) [ 45 ], China ( n = 6) [ 40 – 44 , 56 ], Hong Kong ( n = 1) [ 46 ], Iran ( n = 3) [ 39 , 48 , 51 ], Italy ( n = 3) [ 36 , 49 , 50 ], Oman ( n = 1) [ 35 ], Serbia ( n = 1) [ 54 ], Spain ( n = 1) [ 38 ], Sweden ( n = 1) [ 55 ], and Turkey ( n = 2) [ 37 , 47 ]. One study [ 52 ] involved participants from seven different countries (Australia, Canada, France, Mexico, Spain, UK and USA).…”