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. 2009 Sep 15;101(8):1274–1281. doi: 10.1038/sj.bjc.6605326

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Copyright © 2009 Cancer Research UK

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The overall detection rate and number needed to scope for cancer and ⩾1 advanced adenomas focused on the range between 50 and 200 ng ml⁻¹. Left axis: detection rate for colorectal cancer and advanced adenomas (-•-) Right axis: number needed to scope for colorectal cancer and advanced adenomas (-□-) (by definition ⩾1.0).