Campbell, M. J., & Walters, S. J. How to design, analyse and report cluster randomised trials in medicine and health related research.
Lua i Stíl Chicago (17ú heag.)Campbell, Michael J., agus Stephen John Walters. How to Design, Analyse and Report Cluster Randomised Trials in Medicine and Health Related Research.
Lua MLA (8ú heag.)Campbell, Michael J., agus Stephen John Walters. How to Design, Analyse and Report Cluster Randomised Trials in Medicine and Health Related Research.
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