Shanghai kids more likely to have asthma
Shanghai kids more likely to have asthma
The Chinese Society for Environmental Sciences based the study in part on questioning the parents of thousands of children between three and six years old in Beijing, Shanghai, Xi'an, Wuhan, Harbin, Taiyuan, Chongqing, Changsha, Nanjing and Urumqi.
The Chinese Society for Environmental Sciences based the study in part on questioning the parents of thousands of children between three and six years old in Beijing, Shanghai, Xi'an, Wuhan, Harbin, Taiyuan, Chongqing, Changsha, Nanjing and Urumqi.