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APA Citation
Rex, D. K., Boland, R. C., Dominitz, J. A., Giardiello, F. M., Johnson, D. A., Kaltenbach, T., Levin, T. R., Lieberman, D., & Robertson, D. J. (2017). colorectal Cancer Screening: Recommendations for Physicians and Patients from the U.S. Multi‐Society Task Force on Colorectal Cancer. American journal of gastroenterology, 112, . http://access.bl.uk/ark:/81055/vdc_100123019126.0x000027