“…The majority of the studies were conducted in the USA (n = 13 studies) 101,110,113,114,123,[128][129][130]136,208,213,217 and the UK (n = 11), 99,100,102,108,112,115,116,128,209,214,216 with the remainder in Australia (n = 5), 109,111,118,210,212 Canada (n = 5) 107,117,120,125,211 and the following: Denmark, 207 France, 218 South Africa 215 and Sweden…”