“…[50][51][52][53][54][55][56][57][58][59] Nine studies were conducted in the United States 37,40,42,43,47,52,53,55,56,58 and two in Brazil. 44,45 Studies were also conducted in Iran, 50 Tunisia, 54 Norway, 38,39 Ireland, 51 Sweden, 41 Japan, 59 Germany, 57 Singapore, 46 and the Netherlands. 48,49 Sample sizes ranged from 18 51 to 771.…”