analyzed the time trend of CRC in Japan between 1974 and 1994 according to the site of the tumor within the colon or the rectum, and found that the percentage of occurrence of right-sided colon cancer in colon cancer cases was stable in men, but showed an increasing trend in women.
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Hospital-based colorectal cancer survival trend of different tumor locations from 1960s to 2000s.
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The sentences
Our data showed a trend of rightward shift of tumor location in CRC patients after 2000.