Colon cancer study backs blood stool screening test (Reuters)

[unable to retrieve full-text content]Reuters - Although colon cancer screening is recommended by many organizations, less clear is which method is best to detect tumors and precancerous lesions.

Source: http://us.rd.yahoo.com/dailynews/rss/cancer/*http%3A//news.yahoo.com/s/nm/20120223/hl_nm/us_colonoscopy

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