Fig. 1
Location of Fujian Province in China and regional distribution. (Note: The red box indicates the location of the four cities analysed in this study: Fuzhou, Xiamen, Nanping and Longyan)
Fig. 1 | BMC Public Health
Location of Fujian Province in China and regional distribution. (Note: The red box indicates the location of the four cities analysed in this study: Fuzhou, Xiamen, Nanping and Longyan)