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Choices in colorectal cancer screening: a review of current screening modalities and recommendations.

Colorectal cancer (CRC) is the second leading cause of cancer death in the United States. In 2008, screening recommendations for CRC were updated. Successful reduction in CRC prevalence and deaths depends on a thorough understanding and correct implementation of these guidelines. This paper reviews the most recent CRC screening guidelines, in order to promote increased screening and effective adherence to these guidelines.