Figure 1From: Are social security policies for Chinese landless farmers really effective on health in the process of Chinese rapid urbanization? a study on the effect of social security policies for Chinese landless farmers on their health-related quality of lifeGeographical location and GDP in 2011 and 2012 of three sample cities. Data were obtained from the local bureau of statistics of Yangzhou, Nanjing, and Hangzhou. The URLs are http://tjj.yangzhou.gov.cn/, http://www.njtj.gov.cn/, and http://www.hzstats.gov.cn/web/ separately.Back to article page