“…Studies were published between 2005 and 2020. While 12 studies were published before or in the year 2015 [ 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 ], 24 studies were published after the year 2015 [ 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 ]. Studies were conducted in 11 different countries, with most of them being conducted in the USA .…”