“…Most studies were performed in developed countries. The studies were carried out in the following countries: the United States [37,45,53,54,57,60,61], Sweden [63], Australia [47,58,64], Europe and the USA [48], the United Kingdom [42,44], Germany [43,62], Brazil [51,56,59], Spain [49,52], Ireland [46], and Uganda [54]. The participants' age ranged between 18 and 92 years.…”