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APA Citation
Santiago, P., Coelho-Prabhu, N., Ungaro, R., Friton, J. J., Farraye, F. A., Daoud, N., Tuck, J., Malik, T., & Raffals, L. (n.d.). s953 Validation of AGA Risk Factors for Prediction of IBD Severity. American journal of gastroenterology, 116, S456. http://access.bl.uk/ark:/81055/vdc_100144523488.0x000021