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APA Citation
Wan, D., Tewani, S., Martin, T., Scanlon, P., Mathews, S., Cooley, V., Aboubakr, A., Palanisamy, S., Clarke, L., Fortune, B. E., Bodnar, D. J., Murphy, S., Lee, J. I., & Malhotra, A. (n.d.). s680 CT Angiography-Guided Protocol for Patients With Severe Lower Gastrointestinal Bleeding. American journal of gastroenterology, 116, S306. http://access.bl.uk/ark:/81055/vdc_100144523821.0x00002d