Treatment groups

Control groups

1

Shaoguan, Qingyuan, Guangzhou, Shantou, Foshan, Maoming, Zhaoqing, Meizhou, Heyuan, Yangjiang, Chaozhou, Zhanjiang, Jieyang

Wuhan and Xianning, Yueyang, Chenzhou, Xiangtan, Yiyang, Jingmen, Huanggang, Zhangjiajie, Changsha, Zhuzhou, Changde, Shaoyang, Hengyang, Loudi

2

Hengyang, Chenzhou, Yueyang, Changsha, Zhuzhou, Xiangtan,

Shaoyang, Yiyang, Zhangjiajie, Changde, Loudi

Wuhan and Xianning, Zhaoqing, Shaoguan, Qingyuan, Guangzhou, Jingmen, Huanggang, Jieyang, Shantou, Yangjiang, Chaozhou, Foshan, Meizhou, Heyuan, Zhanjiang, Maoming

3

WuHan, Xianning, Jingmen, Huanggang

Changsha, Zhuzhou, Xiangtan, Zhaoqing, Jieyang, Zhanjiang, Shaoguan, Qingyuan, Guangzhou and Hengyang, Chenzhou, Yueyang, Changde, Loudi, Maoming, Shantou, Yangjiang, Chaozhou, Foshan, Meizhou, Heyuan, Shaoyang, Yiyang, Zhangjiajie