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APA Citation
Iftikhar, S. Y., Steele, R. J., Watson, S., James, P. D., Dilks, K., & Hardcastle, J. D. (1992). assessment of proliferation of squamous, Barrett's and gastric mucosa in patients with columnar lined Barrett's oesophagus.. Gut, 33(6), 733–737. http://access.bl.uk/ark:/81055/vdc_100135151786.0x000044