Cita APA (7th ed.)

Williamson, P., Gamble, C., Altman, D., & Hutton, J. (2005). Outcome selection bias in meta-analysis.

Cita Chicago (17th ed.)

Williamson, P., C. Gamble, D. Altman, i J. Hutton. Outcome Selection Bias in Meta-analysis. 2005.

Cita MLA (9th ed.)

Williamson, P., et al. Outcome Selection Bias in Meta-analysis. 2005.