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- Libro electrónicoStatistics at Square OneMichael J. Campbell
- Libro electrónicoStatistics at Square TwoMichael J. Campbell
- Libro electrónicoSample Size Tables for Clinical StudiesDavid Machin
- Libro electrónicoThe Design of Studies for Medical ResearchDavid Machin
- Libro electrónicoHow to Design, Analyse and Report Cluster Randomised Trials in Medicine and Health Related ResearchMichael J. Campbell
- Libro electrónicoThink RoundMartha R. Pease