" Colorectal cancer is highest in developed countries such as the United States and Japan and often linked to high-fat diets and obesity. It is a growing problem in affluent places in Asia due to changes in diet and more sedentary lifestyles."

" "It may not be due to genetics, it could be environmental. People in the same family may have the same eating habits," said Leung Waikeung, professor of medicine and therapeutics at the Chinese University of Hong Kong."

" Adenomas were detected in 16.4 percent of people in a control
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