Cita APA

Akre, K., Ekström, A. M., Signorello, L. B., Hansson, L., & Nyrén, O. (2001). Aspirin and risk for gastric cancer: A population-based case–control study in Sweden. Nature Publishing Group.

Chicago Style Citation

Akre, K., A M. Ekström, L B. Signorello, L-E Hansson, i O. Nyrén. Aspirin and Risk for Gastric Cancer: A Population-based Case–control Study in Sweden. Nature Publishing Group, 2001.

Cita MLA

Akre, K., et al. Aspirin and Risk for Gastric Cancer: A Population-based Case–control Study in Sweden. Nature Publishing Group, 2001.