“…Almost half (n = 70) of the studies were conducted in China [ 8 , 11 , 23 – 90 ], followed by 15 studies in India [ 10 , 91 – 104 ], 11 studies in Turkey [ 105 – 115 ], 10 studies in Saudi Arabia [ 116 – 125 ], 6 studies in Pakistan [ 126 – 131 ], 4 studies in Indonesia [ 132 – 135 ] and Nepal [ 136 – 139 ] respectively, 3 studies in Malaysia [ 140 – 142 ], Singapore [ 143 – 145 ], Japan [ 146 – 148 ] and Iran [ 149 – 151 ] respectively with 2 studies in Oman [ 152 , 153 ], Jordan [ 154 , 155 ], Philippines [ 156 , 157 ] and Bangladesh [ 158 , 159 ] respectively. Besides, Korea [ 160 ], Qatar [ 161 ], and Iraq [ 162 ] which each had one study, there were also some multinational studies that were conducted, with 2 of them involving several countries in Asian Pacific [ 9 , 163 ] and another one involving both Egypt and Saudi Arabia [ 164 ] (Table A4 in S4 Table ).…”