“…The detailed characteristics of all included studies are presented in Tables 1 and 2 [1,2,3,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54]. These studies were performed in several continents including America, Europe, Asia and Australia.…”