“…in Italy [47,48,72,94,98] and 3 in Pakistan [64,74,90]. Other countries are less represented: 2 of them were performed in the Bahrain [55,63], Bangladesh [60,61], Korea [51,67], Lebanon [53,57], Puerto Rico [46,89], United Kingdom [59,65], and only a study was conducted, respectively, in Bosnia Herzegovina [92], Brazil [70], Canada [83], Caribbean [87], [54], Poland [79], Taiwan [50], Thailand [68],…”