Emeritus Research, Melbourne, Victoria, Australia
Icddr,B, Dhaka, Bangladesh
Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang, Hebei, China
Henan Provincial Center for Disease Control and Prevention, Shangqiu, Henan, China
Hebei Provincial Center for Disease Control and Prevention, Shijiangzhuang, Hebei, China
Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, Guangxi, China
Hunan Center for Disease Control and Prevention, Changsha, Hunan, China
Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, Guangxi, China
Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning, Guangxi, China
Sichuan Center for Disease Control and Prevention, Chengdu, Sichuan, China