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APA Citation
Kurien, M., Evans, K. E., Aziz, I., Cross, S. S., Hopper, A. D., Hadjivassiliou, M., & Sanders, D. S. (n.d.). oC-049 Duodenal bulb biopsies—are they a necessity in coeliac disease?. Gut, 61, A21–A22. http://access.bl.uk/ark:/81055/vdc_100135536947.0x00004d