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The purpose of the study is to determine whether exposure to malnutrition during early life is associated with increased risk of stomach cancer in later life. The design protocol included analyzing the trend of gastric cancer mortality and nutrition and evaluating the association between nutrient deficiency in early life and the risk of gastric cancer by(More)
BACKGROUND Simultaneous exposure to high levels of air pollution and high tobacco consumption at the same place is rare. The aim of the present study was to evaluate the impact of the two factors on the risk of developing lung cancer. METHODS Data on the number of deaths due to lung cancer and on population from 1970 to 2009 were obtained from Zhaoyuan(More)
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