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Murray, F. E., Hudson, N., Atherton, J. C., Cole, A. T., Scheck, F., & Hawkey, C. J. (1996). Comparison of effects of calcium carbasalate and aspirin on gastroduodenal mucosal damage in human volunteers. Gut, 38(1), 11–14. doi:10.1136/gut.38.1.11 
10.1136/gut.38.1.11