“…2). Spain was the most frequently studied country (6 studies, 14.3%) [8,15,40,42,53,65], followed by the United States (5 studies, 11.9%) [33,46,62,62,69], the United Kingdom (5 studies, 11.9%) [35,51,57,59,60], Switzerland (5 studies, 11.9%) [48,49,[54][55][56] and Australia (5 studies, 11.9%) [36,47,58,63,70]. The remaining 16 studies were conducted in 12 countries (Germany, Japan, Brazil, Netherlands, Romania, Norway, Sweden, Denmark, China, Indonesia, Portugal, Chile).…”