“… 92 - 97 Of the quantitative studies, 6 studies were randomized control trials. 47 , 53 - 55 , 63 , 71 , 83 The United States (n = 50) 28 , 41 - 45 , 47 , 49 - 55 , 57 , 58 , 60 - 73 , 75 - 80 , 82 - 84 , 86 - 91 , 93 , 94 , 96 , 98 and Canada...…”