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APA Citation
Asotibe, J., Asemota, I., Warraich, M. S., Khoshbin, K., Amir Sherazi, S. A., Pudasaini, G., & Shah, H. (n.d.). s642 Regional Variation in the Outcomes of Non-Variceal Upper GI Bleeding Hospitalizations: A Retrospective Cohort Study. American journal of gastroenterology, 116, S291. http://access.bl.uk/ark:/81055/vdc_100144523299.0x00003a