1. Mann, C, C, Plummer, M, L, The Aspirin Wars
2. Gastroscopic observations of the effect of aspirin and certain other substances on the stomach;Douthwaite;Lancet,1983
3. Rising frequency of ulcer perforation in elderly people in the United Kingdom;Walt;Lancet,1986
4. Non-steroidal anti-inflammatory drugs and ulcers: facts and figures multiply, but do they add up?;Hawkey;British Medical Journal,1990
5. Risk of bleeding peptic ulcer associated with individual non-steroidal anti-inflammatory drugs;Langman;Lancet,1994