Cite
HARVARD Citation
Walker, V. et al. (1979). Cigarette smoking, chronic peptic ulceration, and pepsin 1 secretion.. Gut. 20 (11), pp. 971-976. [Online].
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Walker, V. et al. (1979). Cigarette smoking, chronic peptic ulceration, and pepsin 1 secretion.. Gut. 20 (11), pp. 971-976. [Online].