“…The first articles in the database are [45] and [47]. However, the literature also covers other countries such as Spain [23], Italy [25], China [21,29,36], Sweden [44], Slovakia [8,46], Germany [16,33], Ghana [38], Brazil [24,40], Portugal [17], Honduras [42,43], Japan [50], France [19,22,30], Switzerland [35,53] and New Zealand [6]. At the continental level, 13 articles related to Europe, 4 to Asia, 9 to North America, 4 to South America, 1 to Oceania and 1 to Africa.…”