Sample Sizes for Clinical, Laboratory and Epidemiology Studies (4th ed.)

An authoritative resource that offers the statistical tools and software needed to design and plan valid clinical studies Now in its fourth and extended edition, Sample Sizes for Clinical, Laboratory and Epidemiology Studies includes the sample size software (SSS) and formulae and numerical tables needed to design valid clinical studies. The text covers clinical as well as laboratory and epidemiology studies and contains the information needed to ensure a study will form a valid contribution to