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APA Citation
Gormally, S. M., Kierce, B. M., Daly, L. E., Bourke, B., Carroll, R., Durnin, M. T., & Drumm, B. (1996). gastric metaplasia and duodenal ulcer disease in children infected by Helicobacter pylori.. Gut, 38(4), 513–517. http://access.bl.uk/ark:/81055/vdc_100137792101.0x000042