Katja Akre

Risk for gastric cancer after antibiotic prophylaxis in patients undergoing hip replacement.

L. Signorello, B. Eriksson, L. Engstrand, 2000, Cancer research.

Aspirin and risk for gastric cancer: a population-based case–control study in Sweden

L. Hansson, L. Signorello, O. Nyrén, 2001, British Journal of Cancer.