Campbell, M., Elbourne, D., & Altman, D. (2004). CONSORT statement: Extension to cluster randomised trials.
Lua i Stíl Chicago (17ú heag.)Campbell, M., DR Elbourne, agus D. Altman. CONSORT Statement: Extension to Cluster Randomised Trials. 2004.
Lua MLA (9ú heag.)Campbell, M., et al. CONSORT Statement: Extension to Cluster Randomised Trials. 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.