“…Regarding the place where studies were conducted, almost one-third of them [22 (32.3%)] sampled children from North America (USA [4,[42][43][44][45][46][47][48][49][50][51]53,55,57,[79][80][81][82][83] and Canada [52,54,56]). Europe was the second continent with the highest number of publications, with 15 (22.0%) studies (Portugal [40,[74][75][76], Spain, [39,71,77], Cyprus [69,70], Poland [38,41], United Kingdom [73,78], Greece [72], and Ireland [37]); followed by Asia [12 (17.6%) studies-China [35,63,68], India [65,67], Japan [33,36,64], Malaysia [31,34], Iran …”