Cita APA

Puffer, S., Torgerson, D., & Watson, J. (2003). Evidence for risk of bias in cluster randomised trials: Review of recent trials published in three general medical journals. BMJ Publishing Group Ltd.

Chicago Style Citation

Puffer, Suezann, David Torgerson, i Judith Watson. Evidence for Risk of Bias in Cluster Randomised Trials: Review of Recent Trials Published in Three General Medical Journals. BMJ Publishing Group Ltd, 2003.

Cita MLA

Puffer, Suezann, David Torgerson, i Judith Watson. Evidence for Risk of Bias in Cluster Randomised Trials: Review of Recent Trials Published in Three General Medical Journals. BMJ Publishing Group Ltd, 2003.