“…Approximately half of these studies (49%) were undertaken in Australia (36-39, 46, 47, 49, 53, 56, 58-60, 64, 66-69, 71, 72, 75, 77, 78, 80, 82, 83, 85-87, 89-91, 94, 95, 98, 99, 101-108, 110, 113, 115-119, 121-123, 126, 128, 130, 133, 136, 137, 140, 143, 144, 148, 151, 152, 160), with just over a fifth (21%) carried out in Canada (31-33, 35, 42-45, 50, 52, 55, 62, 63, 70, 74, 81, 84, 96, 100, 109, 111, 112, 114, 127, 132, 135, 145, 154). An estimated third of selected articles were either undertaken in the United States (16%) (30, 40, 41, 48, 61, 63, 65, 76, 79, 92, 93, 97, 120, 125, 134, 146, 153, 155, 156…”