Shen-sheng Li

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448 public health practitioners in the district were selected randomly from Dec. 2010 to Mar. 2011. Blood specimens were collected and tested for anti-T. gondii IgG by ELISA. The result showed that the positive rate was 10.3% (46/448). No significant difference was found between males and females, so as different cities of origin (P > 0.05). The positive(More)
BACKGROUND China has become the world's largest producer and consumer of tobacco and lung cancer is China's leading cause of cancer deaths. The large majority of Chinese smokers are men. Tobacco consumption is of particular concern among China's internal floating (or migrant) population, which has become a permanent feature of Chinese society, because this(More)
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