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APA Citation
Brenner, A., Greliak, P., Martin, J., Pack, K., Shah, U., & Atkin, W. (n.d.). pTH-020 Retrospective Cohort Study To Determine The Optimum Frequency Of Surveillance Colonoscopy For Patients With Intermediate Grade Colorectal Adenomas In The Uk. Gut, 63, A217. http://access.bl.uk/ark:/81055/vdc_100135174937.0x000046