Dingxing County Center for Disease Control and Prevention, Dingxing, Hebei, China
Zhanjiang Center for Disease Control and Prevention, Zhanjiang, Guangdong, China
Yangchun Center for Disease Control and Prevention, Yangchun, Guangdong, China
Philippine Children's Medical Center, Manila, Philippines
Philippine General Hospital, Manila, Philippines
Asian Hospital and Medical Center, Muntinlupa, Philippines
Centro Médico Bournigal, San Felipe de Puerto Plata, Puerto Plata, Dominican Republic
Felix Maria Goico Hospital, Villa Francisca, Distrito Nacional, Dominican Republic
JoséM.Cabral V Báez, Puñal, Santiago, Dominican Republic
Beijing Centers for Diseases Control and Prevention, Beijing, China
Rushan City Center for Disease Control and Prevention, Weihai, Shandong, China
Yongping Center for Diseases Control and Prevention, Dali, Yunnan, China
Jingliang Wu, Huai'an, Jiangsu, China
Kaihua county Center for Disease Control and Prevention, Quzhou, Zhejiang, China
Dafeng District Center for Disease Prevention and Control, Yancheng, Jiangsu, China