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Variation in food quality may threaten the validity of epidemiological studies in China
  1. Wenbin Liang
  1. School of Public Health, Curtin University of Technology, GPO BOX U1987, Perth WA 6845, Australia;

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    Food safety has become one of the biggest concerns in China, and this may not only put the health of the population at risk but also threaten the validity of epidemiological studies investigating the possible relationship between diet and risk of disease in the country.

    This month in China there was a new warning on the quality of milk powder. In 2003, it was reported that …

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    • Competing interests: None declared.