“…The studies involved people with dementia (six studies [31][32][33][34][35][36]), people with multiple sclerosis (four studies [37][38][39][40]), stroke survivors (two studies [41,42]), and people with Parkinson's disease (one study [43]). The studies were conducted in the United States [39][40][41][42][43], Brazil [33], Korea [31], Sweden [32], the United Kingdom [37], Germany [38], Spain [35], and Taiwan [36], and one study was conducted in three countries (France, Italy, and Spain) [34]. Eight of the studies compared an intervention group to a comparator group/s, in either a quasi-controlled trial [32], a randomized [35] or non-randomized cluster trial [34], or a randomized controlled trial [33,36,39,41,42].…”