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APA Citation
Earlam, R. J., Amerigo, J., Kakavoulis, T., & Pollock, D. J. (1985). histological appearances of oesophagus, antrum and duodenum and their correlation with symptoms in patients with a duodenal ulcer.. Gut, 26(1), 95–100. http://access.bl.uk/ark:/81055/vdc_100137792591.0x00004e