“…Twenty-seven studies were conducted in the United States, two in Australia, 20,21 two in Jordan, 22,23 and one study each in Japan, Iran, Italy, the Netherlands, and Canada. [24][25][26][27][28] Sample size ranged from 44 18 to 8805. 29 Thirteen studies conducted in the United States had a significant proportion of subjects that belong to racial, ethnic, or religious minorities.…”