urbanandrural相关论文
Background and aims: Under the background of the screening for risk factors for stroke in Eastern China,the aim of this ......
Prevalence of deciduous caries and influencing factors of investigation and analysis between urban a
Objectives: To investigate the prevalence of deciduous caries in 3~4 years in urban and rural areas, and analyze its infl......
...
Since the reform and opening up policy implemented, China has gained great urban and rural economic development, with gr......
目的探讨成都地区高尿酸血症患病率及合并心血管危险因素的现状及城乡差异。方法采用随机整群抽样的方法选取成都市城市和农村社区......