Study questions effectiveness of colonoscopies for cancer screenings

The study data was taken from a randomized trial and marks the first time colonoscopies have been compared to not screening for cancer.

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Norway ,Oslo ,United States ,American ,Michael Bretthauer ,William Dahut ,Jason Dominitz ,Veterans Health Administration ,Cnn ,American Cancer Society ,Us Preventive Services Task ,University Of Oslo ,New England Journal ,Services Task Force ,Health ,Medical ,Us ,