APA-referens (7:e uppl.)

Algra, A., & Rothwell, P. (2012). Effects of regular aspirin on long-term cancer incidence and metastasis: A systematic comparison of evidence from observational studies versus randomised trials.

Chicago-referens (17:e uppl.)

Algra, A., och P. Rothwell. Effects of Regular Aspirin on Long-term Cancer Incidence and Metastasis: A Systematic Comparison of Evidence from Observational Studies Versus Randomised Trials. 2012.

MLA-referens (9:e uppl.)

Algra, A., och P. Rothwell. Effects of Regular Aspirin on Long-term Cancer Incidence and Metastasis: A Systematic Comparison of Evidence from Observational Studies Versus Randomised Trials. 2012.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.