“…The characteristics of the 119 papers were shown in Table 1 . The countries included Austria (n = 1), 11 Belgium (n = 2), 38 , 96 China (n = 26), 20 , 21 , 27 , 30 , 31 , 53 – 55 , 59 , 60 , 74 , 84 , 102 , 109 , 112 , 113 , 117 , 119 – 121 , 123 – 128 Cuba (n = 1), 47 Czech Republic (n = 1), 44 Egypt (n = 1), 51 France (n = 6), 25 , 37 , 41 , 71 , 77 , 114 Germany (n = 7), 12 , 48 – 50 , 92 , 105 , 111 Greece (n = 1), 82 Hungary (n = 1), 61 India (n = 10), 19 , 29 , 39 , 40 , 67 , 75 , 76 , 86 , 98 , 115 Iran (n = 1), 87 Italy (n = 5), 22 , 24 , 43 , 46 , 91 Ivory Coast (n = 1), 13 Japan (n = 2), 57 , 106 Mexico (n = 1), 45 Nepal (n = 1), 28 Pakistan (n = 2), 62 , 97 Poland (n = 1), ...…”