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There is a strong evidence of an increasing secular trend in obesity in adolescents in most of the world over the past 10 years. However, no studies have been reported on this trend in Guangzhou, one of the most urbanized areas in China. This study assessed the empirical changes in body mass index (BMI) and the prevalence of overweight and obesity of adolescents in Guangzhou from 2007 to 2011. The...
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